86957686 has 16 divisors (see below), whose sum is σ = 138354480. Its totient is φ = 40848640.

The previous prime is 86957677. The next prime is 86957701. The reversal of 86957686 is 68675968.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20466 + ... + 24346.

It is an arithmetic number, because the mean of its divisors is an integer number (8647155).

Almost surely, 2^86957686 is an apocalyptic number.

86957686 is a deficient number, since it is larger than the sum of its proper divisors (51396794).

86957686 is a wasteful number, since it uses less digits than its factorization.

86957686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4559.

The product of its digits is 4354560, while the sum is 55.

The square root of 86957686 is about 9325.1105087286. The cubic root of 86957686 is about 443.0329132213.

The spelling of 86957686 in words is "eighty-six million, nine hundred fifty-seven thousand, six hundred eighty-six".