83231390 has 16 divisors (see below), whose sum is σ = 163436400. Its totient is φ = 30265920.

The previous prime is 83231387. The next prime is 83231413. The reversal of 83231390 is 9313238.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378215 + ... + 378434.

It is an arithmetic number, because the mean of its divisors is an integer number (10214775).

Almost surely, 2^83231390 is an apocalyptic number.

83231390 is a deficient number, since it is larger than the sum of its proper divisors (80205010).

83231390 is a wasteful number, since it uses less digits than its factorization.

83231390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756667.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 83231390 is about 9123.1239167294. The cubic root of 83231390 is about 436.6120482806.

The spelling of 83231390 in words is "eighty-three million, two hundred thirty-one thousand, three hundred ninety".