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1874881 is a prime number
BaseRepresentation
bin111001001101111000001
310112020212001
413021233001
5434444011
6104104001
721636061
oct7115701
93466761
101874881
111070698
12765001
135084c8
1436b3a1
152707c1
hex1c9bc1

1874881 has 2 divisors, whose sum is σ = 1874882. Its totient is φ = 1874880.

The previous prime is 1874869. The next prime is 1874893. The reversal of 1874881 is 1884781.

It is a balanced prime because it is at equal distance from previous prime (1874869) and next prime (1874893).

It can be written as a sum of positive squares in only one way, i.e., 1849600 + 25281 = 1360^2 + 159^2 .

It is a cyclic number.

It is not a de Polignac number, because 1874881 - 219 = 1350593 is a prime.

It is a super-2 number, since 2×18748812 = 7030357528322, which contains 22 as substring.

It is a Chen prime.

1874881 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1874881.

It is not a weakly prime, because it can be changed into another prime (1824881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 937440 + 937441.

It is an arithmetic number, because the mean of its divisors is an integer number (937441).

21874881 is an apocalyptic number.

It is an amenable number.

1874881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1874881 is an equidigital number, since it uses as much as digits as its factorization.

1874881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14336, while the sum is 37.

The square root of 1874881 is about 1369.2629404172. The cubic root of 1874881 is about 123.3079949570.

It can be divided in two parts, 187488 and 1, that added together give a square (187489 = 4332).

The spelling of 1874881 in words is "one million, eight hundred seventy-four thousand, eight hundred eighty-one".