84064512 has 144 divisors (see below), whose sum is σ = 269480960. Its totient is φ = 22726656.

The previous prime is 84064501. The next prime is 84064543. The reversal of 84064512 is 21546048.

It is a self number, because there is not a number n which added to its sum of digits gives 84064512.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101733 + ... + 102555.

Almost surely, 2^84064512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84064512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134740480).

84064512 is an abundant number, since it is smaller than the sum of its proper divisors (185416448).

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

84064512 is a wasteful number, since it uses less digits than its factorization.

84064512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 84064512 is about 9168.6701325765. The cubic root of 84064512 is about 438.0640009894.

The spelling of 84064512 in words is "eighty-four million, sixty-four thousand, five hundred twelve".