84879612 has 72 divisors (see below), whose sum is σ = 233192960. Its totient is φ = 25932960.

The previous prime is 84879601. The next prime is 84879629. The reversal of 84879612 is 21697848.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19203 + ... + 23205.

Almost surely, 2^84879612 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 84879612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116596480).

84879612 is an abundant number, since it is smaller than the sum of its proper divisors (148313348).

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

84879612 is a wasteful number, since it uses less digits than its factorization.

84879612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4063 (or 4058 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 84879612 is about 9213.0131878772. The cubic root of 84879612 is about 439.4752904993.

It can be divided in two parts, 84879 and 612, that added together give a triangular number (85491 = T₄₁₃).

The spelling of 84879612 in words is "eighty-four million, eight hundred seventy-nine thousand, six hundred twelve".