86957688 has 16 divisors (see below), whose sum is σ = 217394280. Its totient is φ = 28985888.

The previous prime is 86957677. The next prime is 86957701. The reversal of 86957688 is 88675968.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1811595 + ... + 1811642.

Almost surely, 2^86957688 is an apocalyptic number.

It is an amenable number.

86957688 is an abundant number, since it is smaller than the sum of its proper divisors (130436592).

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

86957688 is a wasteful number, since it uses less digits than its factorization.

86957688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3623246 (or 3623242 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 57.

The square root of 86957688 is about 9325.1106159659. The cubic root of 86957688 is about 443.0329166178.

The spelling of 86957688 in words is "eighty-six million, nine hundred fifty-seven thousand, six hundred eighty-eight".