672393239 has 6 divisors (see below), whose sum is σ = 782171784. Its totient is φ = 576337020.

The previous prime is 672393229. The next prime is 672393251. The reversal of 672393239 is 932393276.

It is not a de Polignac number, because 672393239 - 2⁸ = 672392983 is a prime.

It is a super-2 number, since 2×672393239² = 904225335705822242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 672393239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672393229) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 6861107 + ... + 6861204.

It is an arithmetic number, because the mean of its divisors is an integer number (130361964).

Almost surely, 2^672393239 is an apocalyptic number.

672393239 is a deficient number, since it is larger than the sum of its proper divisors (109778545).

672393239 is a wasteful number, since it uses less digits than its factorization.

672393239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13722325 (or 13722318 counting only the distinct ones).

The product of its digits is 367416, while the sum is 44.

The square root of 672393239 is about 25930.5464462282. The cubic root of 672393239 is about 876.0746476111.

The spelling of 672393239 in words is "six hundred seventy-two million, three hundred ninety-three thousand, two hundred thirty-nine".