86806564 has 12 divisors (see below), whose sum is σ = 163597084. Its totient is φ = 40064544.

The previous prime is 86806549. The next prime is 86806589. The reversal of 86806564 is 46560868.

It can be written as a sum of positive squares in 2 ways, for example, as 23444964 + 63361600 = 4842^2 + 7960^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 86806564.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834627 + ... + 834730.

Almost surely, 2^86806564 is an apocalyptic number.

It is an amenable number.

86806564 is a deficient number, since it is larger than the sum of its proper divisors (76790520).

86806564 is a wasteful number, since it uses less digits than its factorization.

86806564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669374 (or 1669372 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 86806564 is about 9317.0040248998. The cubic root of 86806564 is about 442.7761184309.

The spelling of 86806564 in words is "eighty-six million, eight hundred six thousand, five hundred sixty-four".