84486564 has 30 divisors (see below), whose sum is σ = 220865414. Its totient is φ = 28162080.

The previous prime is 84486557. The next prime is 84486593. The reversal of 84486564 is 46568448.

84486564 is a `hidden beast` number, since 8 + 4 + 4 + 86 + 564 = 666.

It can be written as a sum of positive squares in only one way, i.e., 47032164 + 37454400 = 6858^2 + 6120^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 130057 + ... + 130704.

Almost surely, 2^84486564 is an apocalyptic number.

It is an amenable number.

84486564 is an abundant number, since it is smaller than the sum of its proper divisors (136378850).

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

84486564 is a wasteful number, since it uses less digits than its factorization.

84486564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260777 (or 260766 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The square root of 84486564 is about 9191.6573043168. The cubic root of 84486564 is about 438.7958882533.

The spelling of 84486564 in words is "eighty-four million, four hundred eighty-six thousand, five hundred sixty-four".