84231564 has 12 divisors (see below), whose sum is σ = 196540344. Its totient is φ = 28077184.

The previous prime is 84231547. The next prime is 84231571. The reversal of 84231564 is 46513248.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3509637 + ... + 3509660.

It is an arithmetic number, because the mean of its divisors is an integer number (16378362).

Almost surely, 2^84231564 is an apocalyptic number.

It is an amenable number.

84231564 is an abundant number, since it is smaller than the sum of its proper divisors (112308780).

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

84231564 is a wasteful number, since it uses less digits than its factorization.

84231564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7019304 (or 7019302 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 84231564 is about 9177.7755474843. The cubic root of 84231564 is about 438.3539808529.

The spelling of 84231564 in words is "eighty-four million, two hundred thirty-one thousand, five hundred sixty-four".