86809976 has 16 divisors (see below), whose sum is σ = 177566040. Its totient is φ = 39459040.

The previous prime is 86809937. The next prime is 86809979. The reversal of 86809976 is 67990868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86809979) 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, 493151 + ... + 493326.

Almost surely, 2^86809976 is an apocalyptic number.

It is an amenable number.

86809976 is an abundant number, since it is smaller than the sum of its proper divisors (90756064).

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

86809976 is a wasteful number, since it uses less digits than its factorization.

86809976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986494 (or 986490 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 86809976 is about 9317.1871291716. The cubic root of 86809976 is about 442.7819195756.

The spelling of 86809976 in words is "eighty-six million, eight hundred nine thousand, nine hundred seventy-six".