86966864 has 20 divisors (see below), whose sum is σ = 175825056. Its totient is φ = 41592672.

The previous prime is 86966861. The next prime is 86966899. The reversal of 86966864 is 46866968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86966861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117794 + ... + 118529.

Almost surely, 2^86966864 is an apocalyptic number.

It is an amenable number.

86966864 is an abundant number, since it is smaller than the sum of its proper divisors (88858192).

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

86966864 is a wasteful number, since it uses less digits than its factorization.

86966864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236354 (or 236348 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 53.

The square root of 86966864 is about 9325.6026078747. The cubic root of 86966864 is about 443.0484993959.

The spelling of 86966864 in words is "eighty-six million, nine hundred sixty-six thousand, eight hundred sixty-four".