86564430 has 32 divisors (see below), whose sum is σ = 230839200. Its totient is φ = 23083776.

The previous prime is 86564419. The next prime is 86564453. The reversal of 86564430 is 3446568.

86564430 is a `hidden beast` number, since 8 + 6 + 5 + 644 + 3 + 0 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160035 + ... + 160574.

It is an arithmetic number, because the mean of its divisors is an integer number (7213725).

Almost surely, 2^86564430 is an apocalyptic number.

86564430 is an abundant number, since it is smaller than the sum of its proper divisors (144274770).

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

86564430 is a wasteful number, since it uses less digits than its factorization.

86564430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320625 (or 320619 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 86564430 is about 9304.0007523645. Note that the first 3 decimals coincide. The cubic root of 86564430 is about 442.3640490140.

The spelling of 86564430 in words is "eighty-six million, five hundred sixty-four thousand, four hundred thirty".