27713657 has 4 divisors (see below), whose sum is σ = 28183440. Its totient is φ = 27243876.

The previous prime is 27713641. The next prime is 27713669. The reversal of 27713657 is 75631772.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27713657 - 2⁴ = 27713641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27713657.

It is not an unprimeable number, because it can be changed into a prime (27713687) 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 in 3 ways as a sum of consecutive naturals, for example, 234803 + ... + 234920.

It is an arithmetic number, because the mean of its divisors is an integer number (7045860).

Almost surely, 2^27713657 is an apocalyptic number.

It is an amenable number.

27713657 is a deficient number, since it is larger than the sum of its proper divisors (469783).

27713657 is an equidigital number, since it uses as much as digits as its factorization.

27713657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469782.

The product of its digits is 61740, while the sum is 38.

The square root of 27713657 is about 5264.3762213580. The cubic root of 27713657 is about 302.6202222319.

The spelling of 27713657 in words is "twenty-seven million, seven hundred thirteen thousand, six hundred fifty-seven".