86650865 has 12 divisors (see below), whose sum is σ = 120957876. Its totient is φ = 59417568.

The previous prime is 86650843. The next prime is 86650871. The reversal of 86650865 is 56805668.

It can be written as a sum of positive squares in 2 ways, for example, as 65820769 + 20830096 = 8113^2 + 4564^2 .

It is not a de Polignac number, because 86650865 - 2⁸ = 86650609 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176594 + ... + 177083.

It is an arithmetic number, because the mean of its divisors is an integer number (10079823).

Almost surely, 2^86650865 is an apocalyptic number.

It is an amenable number.

86650865 is a deficient number, since it is larger than the sum of its proper divisors (34307011).

86650865 is a wasteful number, since it uses less digits than its factorization.

86650865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353696 (or 353689 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The square root of 86650865 is about 9308.6446381844. The cubic root of 86650865 is about 442.5112342472.

The spelling of 86650865 in words is "eighty-six million, six hundred fifty thousand, eight hundred sixty-five".