312968417 has 4 divisors (see below), whose sum is σ = 315252996. Its totient is φ = 310683840.

The previous prime is 312968413. The next prime is 312968431. The reversal of 312968417 is 714869213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 125798656 + 187169761 = 11216^2 + 13681^2 .

It is a cyclic number.

It is not a de Polignac number, because 312968417 - 2² = 312968413 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312968413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1142084 + ... + 1142357.

It is an arithmetic number, because the mean of its divisors is an integer number (78813249).

Almost surely, 2^312968417 is an apocalyptic number.

It is an amenable number.

312968417 is a deficient number, since it is larger than the sum of its proper divisors (2284579).

312968417 is a wasteful number, since it uses less digits than its factorization.

312968417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2284578.

The product of its digits is 72576, while the sum is 41.

The square root of 312968417 is about 17690.9134020830. The cubic root of 312968417 is about 678.9432960413.

The spelling of 312968417 in words is "three hundred twelve million, nine hundred sixty-eight thousand, four hundred seventeen".