799909131 has 16 divisors (see below), whose sum is σ = 1219809024. Its totient is φ = 456753504.

The previous prime is 799909087. The next prime is 799909133. The reversal of 799909131 is 131909997.

It is not a de Polignac number, because 799909131 - 2⁹ = 799908619 is a prime.

It is a super-2 number, since 2×799909131² = 1279709235714350322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (799909133) 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 15 ways as a sum of consecutive naturals, for example, 16621 + ... + 43313.

It is an arithmetic number, because the mean of its divisors is an integer number (76238064).

Almost surely, 2^799909131 is an apocalyptic number.

799909131 is a deficient number, since it is larger than the sum of its proper divisors (419899893).

799909131 is a wasteful number, since it uses less digits than its factorization.

799909131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28130.

The product of its (nonzero) digits is 137781, while the sum is 48.

The square root of 799909131 is about 28282.6648496919. The cubic root of 799909131 is about 928.2826173471.

The spelling of 799909131 in words is "seven hundred ninety-nine million, nine hundred nine thousand, one hundred thirty-one".