431872339 has 8 divisors (see below), whose sum is σ = 438600960. Its totient is φ = 425161800.

The previous prime is 431872319. The next prime is 431872373. The reversal of 431872339 is 933278134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 431872339 - 2¹⁵ = 431839571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431872319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48354 + ... + 56584.

It is an arithmetic number, because the mean of its divisors is an integer number (54825120).

Almost surely, 2^431872339 is an apocalyptic number.

431872339 is a deficient number, since it is larger than the sum of its proper divisors (6728621).

431872339 is an equidigital number, since it uses as much as digits as its factorization.

431872339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9041.

The product of its digits is 108864, while the sum is 40.

The square root of 431872339 is about 20781.5384175474. The cubic root of 431872339 is about 755.8781583502.

The spelling of 431872339 in words is "four hundred thirty-one million, eight hundred seventy-two thousand, three hundred thirty-nine".