86404770 has 24 divisors (see below), whose sum is σ = 224652636. Its totient is φ = 23041248.

The previous prime is 86404757. The next prime is 86404789. The reversal of 86404770 is 7740468.

It is a happy number.

86404770 is a `hidden beast` number, since 8 + 640 + 4 + 7 + 7 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 84217329 + 2187441 = 9177^2 + 1479^2 .

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 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 11 ways as a sum of consecutive naturals, for example, 479937 + ... + 480116.

Almost surely, 2^86404770 is an apocalyptic number.

86404770 is an abundant number, since it is smaller than the sum of its proper divisors (138247866).

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

86404770 is a wasteful number, since it uses less digits than its factorization.

86404770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960066 (or 960063 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 86404770 is about 9295.4166125032. The cubic root of 86404770 is about 442.0919152567.

The spelling of 86404770 in words is "eighty-six million, four hundred four thousand, seven hundred seventy".