27725916 has 12 divisors (see below), whose sum is σ = 64693832. Its totient is φ = 9241968.

The previous prime is 27725909. The next prime is 27725917. The reversal of 27725916 is 61952772.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27725917) 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 in 3 ways as a sum of consecutive naturals, for example, 1155235 + ... + 1155258.

Almost surely, 2^27725916 is an apocalyptic number.

It is an amenable number.

27725916 is an abundant number, since it is smaller than the sum of its proper divisors (36967916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27725916 is a wasteful number, since it uses less digits than its factorization.

27725916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2310500 (or 2310498 counting only the distinct ones).

The product of its digits is 52920, while the sum is 39.

The square root of 27725916 is about 5265.5404281042. The cubic root of 27725916 is about 302.6648365103.

The spelling of 27725916 in words is "twenty-seven million, seven hundred twenty-five thousand, nine hundred sixteen".