313223979 has 8 divisors (see below), whose sum is σ = 424710720. Its totient is φ = 205276616.

The previous prime is 313223971. The next prime is 313223993. The reversal of 313223979 is 979322313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 313223979 - 2³ = 313223971 is a prime.

It is a super-2 number, since 2×313223979² = 196218522041184882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (313223971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 884637 + ... + 884990.

It is an arithmetic number, because the mean of its divisors is an integer number (53088840).

Almost surely, 2^313223979 is an apocalyptic number.

313223979 is a deficient number, since it is larger than the sum of its proper divisors (111486741).

313223979 is a wasteful number, since it uses less digits than its factorization.

313223979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769689.

The product of its digits is 61236, while the sum is 39.

The square root of 313223979 is about 17698.1349017347. The cubic root of 313223979 is about 679.1280483359.

The spelling of 313223979 in words is "three hundred thirteen million, two hundred twenty-three thousand, nine hundred seventy-nine".