27898925 has 12 divisors (see below), whose sum is σ = 35530836. Its totient is φ = 21715200.

The previous prime is 27898903. The next prime is 27898933. The reversal of 27898925 is 52989872.

It can be written as a sum of positive squares in 6 ways, for example, as 1653796 + 26245129 = 1286^2 + 5123^2 .

It is not a de Polignac number, because 27898925 - 2²⁴ = 11121709 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 14156 + ... + 16005.

It is an arithmetic number, because the mean of its divisors is an integer number (2960903).

Almost surely, 2^27898925 is an apocalyptic number.

27898925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27898925 is a deficient number, since it is larger than the sum of its proper divisors (7631911).

27898925 is a wasteful number, since it uses less digits than its factorization.

27898925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30208 (or 30203 counting only the distinct ones).

The product of its digits is 725760, while the sum is 50.

The square root of 27898925 is about 5281.9432976888. The cubic root of 27898925 is about 303.2930718478.

The spelling of 27898925 in words is "twenty-seven million, eight hundred ninety-eight thousand, nine hundred twenty-five".