82320504 has 32 divisors (see below), whose sum is σ = 235201920. Its totient is φ = 23520096.

The previous prime is 82320487. The next prime is 82320509. The reversal of 82320504 is 40502328.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82320509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244834 + ... + 245169.

It is an arithmetic number, because the mean of its divisors is an integer number (7350060).

Almost surely, 2^82320504 is an apocalyptic number.

82320504 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

82320504 is an abundant number, since it is smaller than the sum of its proper divisors (152881416).

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

82320504 is a wasteful number, since it uses less digits than its factorization.

82320504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490019 (or 490015 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 82320504 is about 9073.0647523315. The cubic root of 82320504 is about 435.0134386124.

The spelling of 82320504 in words is "eighty-two million, three hundred twenty thousand, five hundred four".