82572858 has 48 divisors (see below), whose sum is σ = 188225856. Its totient is φ = 27125280.

The previous prime is 82572851. The next prime is 82572883. The reversal of 82572858 is 85827528.

It is not an unprimeable number, because it can be changed into a prime (82572851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33310 + ... + 35702.

It is an arithmetic number, because the mean of its divisors is an integer number (3921372).

Almost surely, 2^82572858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82572858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94112928).

82572858 is an abundant number, since it is smaller than the sum of its proper divisors (105652998).

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

82572858 is a wasteful number, since it uses less digits than its factorization.

82572858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2481 (or 2469 counting only the distinct ones).

The product of its digits is 358400, while the sum is 45.

The square root of 82572858 is about 9086.9608780934. The cubic root of 82572858 is about 435.4574972702.

The spelling of 82572858 in words is "eighty-two million, five hundred seventy-two thousand, eight hundred fifty-eight".