84579656 has 64 divisors (see below), whose sum is σ = 189665280. Its totient is φ = 34597440.

The previous prime is 84579653. The next prime is 84579683. The reversal of 84579656 is 65697548.

It is not an unprimeable number, because it can be changed into a prime (84579653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143795 + ... + 144381.

It is an arithmetic number, because the mean of its divisors is an integer number (2963520).

Almost surely, 2^84579656 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 84579656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94832640).

84579656 is an abundant number, since it is smaller than the sum of its proper divisors (105085624).

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

84579656 is a wasteful number, since it uses less digits than its factorization.

84579656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714 (or 710 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 50.

The square root of 84579656 is about 9196.7198500335. The cubic root of 84579656 is about 438.9569923431.

The spelling of 84579656 in words is "eighty-four million, five hundred seventy-nine thousand, six hundred fifty-six".