431045979 has 64 divisors (see below), whose sum is σ = 744726528. Its totient is φ = 215879040.

The previous prime is 431045939. The next prime is 431045983. The reversal of 431045979 is 979540134.

It is not a de Polignac number, because 431045979 - 2¹² = 431041883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 431045979.

It is not an unprimeable number, because it can be changed into a prime (431045929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8132917 + ... + 8132969.

It is an arithmetic number, because the mean of its divisors is an integer number (11636352).

Almost surely, 2^431045979 is an apocalyptic number.

431045979 is a deficient number, since it is larger than the sum of its proper divisors (313680549).

431045979 is an equidigital number, since it uses as much as digits as its factorization.

431045979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 431045979 is about 20761.6468277447. The cubic root of 431045979 is about 755.3957424158.

The spelling of 431045979 in words is "four hundred thirty-one million, forty-five thousand, nine hundred seventy-nine".