86378922 has 24 divisors (see below), whose sum is σ = 213890976. Its totient is φ = 24679656.

The previous prime is 86378917. The next prime is 86378933. The reversal of 86378922 is 22987368.

86378922 is a `hidden beast` number, since 8 + 637 + 8 + 9 + 2 + 2 = 666.

It is a super-2 number, since 2×86378922² = 14922636331764168, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 342648 + ... + 342899.

It is an arithmetic number, because the mean of its divisors is an integer number (8912124).

Almost surely, 2^86378922 is an apocalyptic number.

86378922 is an abundant number, since it is smaller than the sum of its proper divisors (127512054).

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

86378922 is a wasteful number, since it uses less digits than its factorization.

86378922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685562 (or 685559 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 86378922 is about 9294.0261458638. The cubic root of 86378922 is about 442.0478269056.

The spelling of 86378922 in words is "eighty-six million, three hundred seventy-eight thousand, nine hundred twenty-two".