1874729 has 2 divisors, whose sum is σ = 1874730. Its totient is φ = 1874728.

The previous prime is 1874723. The next prime is 1874759. The reversal of 1874729 is 9274781.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1155625 + 719104 = 1075^2 + 848^2 .

It is an emirp because it is prime and its reverse (9274781) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1874729 - 2¹⁶ = 1809193 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1874692 and 1874701.

It is not a weakly prime, because it can be changed into another prime (1874723) 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, 937364 + 937365.

It is an arithmetic number, because the mean of its divisors is an integer number (937365).

2^1874729 is an apocalyptic number.

It is an amenable number.

1874729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1874729 is an equidigital number, since it uses as much as digits as its factorization.

1874729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 38.

The square root of 1874729 is about 1369.2074349784. The cubic root of 1874729 is about 123.3046625994.

It can be divided in two parts, 18 and 74729, that added together give a palindrome (74747).

The spelling of 1874729 in words is "one million, eight hundred seventy-four thousand, seven hundred twenty-nine".