82431308 has 12 divisors (see below), whose sum is σ = 146231400. Its totient is φ = 40650912.

The previous prime is 82431289. The next prime is 82431337. The reversal of 82431308 is 80313428.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140858 + ... + 141441.

It is an arithmetic number, because the mean of its divisors is an integer number (12185950).

Almost surely, 2^82431308 is an apocalyptic number.

It is an amenable number.

82431308 is a deficient number, since it is larger than the sum of its proper divisors (63800092).

82431308 is a wasteful number, since it uses less digits than its factorization.

82431308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282376 (or 282374 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 82431308 is about 9079.1689046961. The cubic root of 82431308 is about 435.2085281971.

The spelling of 82431308 in words is "eighty-two million, four hundred thirty-one thousand, three hundred eight".