27713665 has 12 divisors (see below), whose sum is σ = 38686356. Its totient is φ = 19003488.

The previous prime is 27713641. The next prime is 27713669. The reversal of 27713665 is 56631772.

It can be written as a sum of positive squares in 2 ways, for example, as 9659664 + 18054001 = 3108^2 + 4249^2 .

It is not a de Polignac number, because 27713665 - 2⁵ = 27713633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27713669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56314 + ... + 56803.

It is an arithmetic number, because the mean of its divisors is an integer number (3223863).

Almost surely, 2^27713665 is an apocalyptic number.

It is an amenable number.

27713665 is a deficient number, since it is larger than the sum of its proper divisors (10972691).

27713665 is a wasteful number, since it uses less digits than its factorization.

27713665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113136 (or 113129 counting only the distinct ones).

The product of its digits is 52920, while the sum is 37.

The square root of 27713665 is about 5264.3769811821. The cubic root of 27713665 is about 302.6202513506.

The spelling of 27713665 in words is "twenty-seven million, seven hundred thirteen thousand, six hundred sixty-five".