84020504 has 16 divisors (see below), whose sum is σ = 158598000. Its totient is φ = 41727712.

The previous prime is 84020491. The next prime is 84020507. The reversal of 84020504 is 40502048.

It is a self number, because there is not a number n which added to its sum of digits gives 84020504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84020507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34052 + ... + 36435.

It is an arithmetic number, because the mean of its divisors is an integer number (9912375).

Almost surely, 2^84020504 is an apocalyptic number.

It is an amenable number.

84020504 is a deficient number, since it is larger than the sum of its proper divisors (74577496).

84020504 is a wasteful number, since it uses less digits than its factorization.

84020504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70642 (or 70638 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 84020504 is about 9166.2699065650. The cubic root of 84020504 is about 437.9875450821.

The spelling of 84020504 in words is "eighty-four million, twenty thousand, five hundred four".