86628875 has 32 divisors (see below), whose sum is σ = 112679424. Its totient is φ = 66444000.

The previous prime is 86628869. The next prime is 86628907. The reversal of 86628875 is 57882668.

It is not a de Polignac number, because 86628875 - 2¹² = 86624779 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381512 + ... + 381738.

It is an arithmetic number, because the mean of its divisors is an integer number (3521232).

Almost surely, 2^86628875 is an apocalyptic number.

86628875 is a deficient number, since it is larger than the sum of its proper divisors (26050549).

86628875 is a wasteful number, since it uses less digits than its factorization.

86628875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 346 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 50.

The square root of 86628875 is about 9307.4634030975. The cubic root of 86628875 is about 442.4737980165.

The spelling of 86628875 in words is "eighty-six million, six hundred twenty-eight thousand, eight hundred seventy-five".