672099839 has 4 divisors (see below), whose sum is σ = 688492560. Its totient is φ = 655707120.

The previous prime is 672099833. The next prime is 672099851. The reversal of 672099839 is 938990276.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 672099839 - 2²⁰ = 671051263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672099833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8196299 + ... + 8196380.

It is an arithmetic number, because the mean of its divisors is an integer number (172123140).

Almost surely, 2^672099839 is an apocalyptic number.

672099839 is a deficient number, since it is larger than the sum of its proper divisors (16392721).

672099839 is a wasteful number, since it uses less digits than its factorization.

672099839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16392720.

The product of its (nonzero) digits is 1469664, while the sum is 53.

The square root of 672099839 is about 25924.8884086316. Note that the first 3 decimals coincide. The cubic root of 672099839 is about 875.9472034894.

The spelling of 672099839 in words is "six hundred seventy-two million, ninety-nine thousand, eight hundred thirty-nine".