82573998 has 32 divisors (see below), whose sum is σ = 188316576. Its totient is φ = 23912448.

The previous prime is 82573969. The next prime is 82573999. The reversal of 82573998 is 89937528.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 82573998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82573999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29811 + ... + 32462.

It is an arithmetic number, because the mean of its divisors is an integer number (5884893).

Almost surely, 2^82573998 is an apocalyptic number.

82573998 is an abundant number, since it is smaller than the sum of its proper divisors (105742578).

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

82573998 is a wasteful number, since it uses less digits than its factorization.

82573998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62308.

The product of its digits is 1088640, while the sum is 51.

The square root of 82573998 is about 9087.0236051196. The cubic root of 82573998 is about 435.4595012348.

The spelling of 82573998 in words is "eighty-two million, five hundred seventy-three thousand, nine hundred ninety-eight".