84423564 has 36 divisors (see below), whose sum is σ = 225958824. Its totient is φ = 26485632.

The previous prime is 84423523. The next prime is 84423569. The reversal of 84423564 is 46532448.

84423564 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

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

84423564 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (84423569) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68362 + ... + 69585.

It is an arithmetic number, because the mean of its divisors is an integer number (6276634).

Almost surely, 2^84423564 is an apocalyptic number.

It is an amenable number.

84423564 is an abundant number, since it is smaller than the sum of its proper divisors (141535260).

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

84423564 is a wasteful number, since it uses less digits than its factorization.

84423564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137974 (or 137969 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 84423564 is about 9188.2296444963. The cubic root of 84423564 is about 438.6867939242.

The spelling of 84423564 in words is "eighty-four million, four hundred twenty-three thousand, five hundred sixty-four".