84815136 has 72 divisors (see below), whose sum is σ = 275655744. Its totient is φ = 24232320.

The previous prime is 84815117. The next prime is 84815147. The reversal of 84815136 is 63151848.

84815136 = T₂₄₉₃ + T₂₄₉₄ + ... + T₂₅₁₉.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 84815136.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19020 + ... + 23051.

It is an arithmetic number, because the mean of its divisors is an integer number (3828552).

Almost surely, 2^84815136 is an apocalyptic number.

It is an amenable number.

84815136 is an abundant number, since it is smaller than the sum of its proper divisors (190840608).

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

84815136 is a wasteful number, since it uses less digits than its factorization.

84815136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42094 (or 42083 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 84815136 is about 9209.5133421913. The cubic root of 84815136 is about 439.3639846708.

The spelling of 84815136 in words is "eighty-four million, eight hundred fifteen thousand, one hundred thirty-six".