82173954 has 64 divisors (see below), whose sum is σ = 181274112. Its totient is φ = 24729600.

The previous prime is 82173943. The next prime is 82173991. The reversal of 82173954 is 45937128.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 292294 + ... + 292574.

It is an arithmetic number, because the mean of its divisors is an integer number (2832408).

Almost surely, 2^82173954 is an apocalyptic number.

82173954 is an abundant number, since it is smaller than the sum of its proper divisors (99100158).

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

82173954 is a wasteful number, since it uses less digits than its factorization.

82173954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411.

The product of its digits is 60480, while the sum is 39.

The square root of 82173954 is about 9064.9850523870. The cubic root of 82173954 is about 434.7551429488.

The spelling of 82173954 in words is "eighty-two million, one hundred seventy-three thousand, nine hundred fifty-four".