86957687 has 8 divisors (see below), whose sum is σ = 91676256. Its totient is φ = 82317312.

The previous prime is 86957677. The next prime is 86957701. The reversal of 86957687 is 78675968.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86957687 - 2⁴ = 86957671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86957677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17258 + ... + 21719.

It is an arithmetic number, because the mean of its divisors is an integer number (11459532).

Almost surely, 2^86957687 is an apocalyptic number.

86957687 is a deficient number, since it is larger than the sum of its proper divisors (4718569).

86957687 is a wasteful number, since it uses less digits than its factorization.

86957687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39097.

The product of its digits is 5080320, while the sum is 56.

The square root of 86957687 is about 9325.1105623472. The cubic root of 86957687 is about 443.0329149195.

The spelling of 86957687 in words is "eighty-six million, nine hundred fifty-seven thousand, six hundred eighty-seven".