869960931 has 16 divisors (see below), whose sum is σ = 1341629184. Its totient is φ = 491130144.

The previous prime is 869960899. The next prime is 869960933. The reversal of 869960931 is 139069968.

It is not a de Polignac number, because 869960931 - 2⁵ = 869960899 is a prime.

It is a super-2 number, since 2×869960931² = 1513664042932773522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (869960933) 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, 247816 + ... + 251301.

It is an arithmetic number, because the mean of its divisors is an integer number (83851824).

Almost surely, 2^869960931 is an apocalyptic number.

869960931 is a deficient number, since it is larger than the sum of its proper divisors (471668253).

869960931 is a wasteful number, since it uses less digits than its factorization.

869960931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499210.

The product of its (nonzero) digits is 629856, while the sum is 51.

The square root of 869960931 is about 29495.1001184943. The cubic root of 869960931 is about 954.6259807448.

The spelling of 869960931 in words is "eight hundred sixty-nine million, nine hundred sixty thousand, nine hundred thirty-one".