27707697 has 16 divisors (see below), whose sum is σ = 41160960. Its totient is φ = 18421200.

The previous prime is 27707689. The next prime is 27707737. The reversal of 27707697 is 79670772.

It is not a de Polignac number, because 27707697 - 2³ = 27707689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27707497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10447 + ... + 12827.

It is an arithmetic number, because the mean of its divisors is an integer number (2572560).

Almost surely, 2^27707697 is an apocalyptic number.

27707697 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

27707697 is a deficient number, since it is larger than the sum of its proper divisors (13453263).

27707697 is a wasteful number, since it uses less digits than its factorization.

27707697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2821 (or 2815 counting only the distinct ones).

The product of its (nonzero) digits is 259308, while the sum is 45.

The square root of 27707697 is about 5263.8101219554. The cubic root of 27707697 is about 302.5985272022.

The spelling of 27707697 in words is "twenty-seven million, seven hundred seven thousand, six hundred ninety-seven".