84573020 has 72 divisors (see below), whose sum is σ = 208086480. Its totient is φ = 28788480.

The previous prime is 84573017. The next prime is 84573031. The reversal of 84573020 is 2037548.

It is a happy number.

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, 206576 + ... + 206984.

It is an arithmetic number, because the mean of its divisors is an integer number (2890090).

Almost surely, 2^84573020 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 84573020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104043240).

84573020 is an abundant number, since it is smaller than the sum of its proper divisors (123513460).

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

84573020 is a wasteful number, since it uses less digits than its factorization.

84573020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 84573020 is about 9196.3590621506. The cubic root of 84573020 is about 438.9455120616.

The spelling of 84573020 in words is "eighty-four million, five hundred seventy-three thousand, twenty".