1827901 has 2 divisors, whose sum is σ = 1827902. Its totient is φ = 1827900.

The previous prime is 1827869. The next prime is 1827929. The reversal of 1827901 is 1097281.

It is an a-pointer prime, because the next prime (1827929) can be obtained adding 1827901 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1819801 + 8100 = 1349^2 + 90^2 .

It is a cyclic number.

It is not a de Polignac number, because 1827901 - 2⁵ = 1827869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1827901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1827101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 913950 + 913951.

It is an arithmetic number, because the mean of its divisors is an integer number (913951).

2^1827901 is an apocalyptic number.

It is an amenable number.

1827901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1827901 is an equidigital number, since it uses as much as digits as its factorization.

1827901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 1827901 is about 1351.9988905321. The cubic root of 1827901 is about 122.2693368709.

The spelling of 1827901 in words is "one million, eight hundred twenty-seven thousand, nine hundred one".