82421592 has 32 divisors (see below), whose sum is σ = 224786880. Its totient is φ = 24976160.

The previous prime is 82421587. The next prime is 82421609. The reversal of 82421592 is 29512428.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155838 + ... + 156365.

It is an arithmetic number, because the mean of its divisors is an integer number (7024590).

Almost surely, 2^82421592 is an apocalyptic number.

It is an amenable number.

82421592 is an abundant number, since it is smaller than the sum of its proper divisors (142365288).

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

82421592 is a wasteful number, since it uses less digits than its factorization.

82421592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312223 (or 312219 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 82421592 is about 9078.6338179266. The cubic root of 82421592 is about 435.1914284959.

The spelling of 82421592 in words is "eighty-two million, four hundred twenty-one thousand, five hundred ninety-two".