312930969 has 16 divisors (see below), whose sum is σ = 472987200. Its totient is φ = 182437056.

The previous prime is 312930913. The next prime is 312930973. The reversal of 312930969 is 969039213.

It is a happy number.

It is not a de Polignac number, because 312930969 - 2²⁰ = 311882393 is a prime.

It is a super-2 number, since 2×312930969² = 195851582718557922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 312930969.

It is not an unprimeable number, because it can be changed into a prime (312930469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210414 + ... + 211895.

It is an arithmetic number, because the mean of its divisors is an integer number (29561700).

Almost surely, 2^312930969 is an apocalyptic number.

312930969 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

312930969 is a deficient number, since it is larger than the sum of its proper divisors (160056231).

312930969 is a wasteful number, since it uses less digits than its factorization.

312930969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422344.

The product of its (nonzero) digits is 78732, while the sum is 42.

The square root of 312930969 is about 17689.8549739674. The cubic root of 312930969 is about 678.9162154784.

The spelling of 312930969 in words is "three hundred twelve million, nine hundred thirty thousand, nine hundred sixty-nine".