312396947 has 16 divisors (see below), whose sum is σ = 340526592. Its totient is φ = 285479040.

The previous prime is 312396937. The next prime is 312396949. The reversal of 312396947 is 749693213.

It is a cyclic number.

It is not a de Polignac number, because 312396947 - 2⁸ = 312396691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312396898 and 312396907.

It is not an unprimeable number, because it can be changed into a prime (312396949) 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, 78938 + ... + 82800.

It is an arithmetic number, because the mean of its divisors is an integer number (21282912).

Almost surely, 2^312396947 is an apocalyptic number.

312396947 is a deficient number, since it is larger than the sum of its proper divisors (28129645).

312396947 is a wasteful number, since it uses less digits than its factorization.

312396947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4018.

The product of its digits is 244944, while the sum is 44.

The square root of 312396947 is about 17674.7545103178. The cubic root of 312396947 is about 678.5298015799.

The spelling of 312396947 in words is "three hundred twelve million, three hundred ninety-six thousand, nine hundred forty-seven".