313990973 has 8 divisors (see below), whose sum is σ = 325931520. Its totient is φ = 302269680.

The previous prime is 313990967. The next prime is 313990987. The reversal of 313990973 is 379099313.

It is a happy number.

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 313990973 - 2⁸ = 313990717 is a prime.

It is a super-2 number, since 2×313990973² = 197180662250973458, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313990993) 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, 51893 + ... + 57626.

It is an arithmetic number, because the mean of its divisors is an integer number (40741440).

Almost surely, 2^313990973 is an apocalyptic number.

It is an amenable number.

313990973 is a deficient number, since it is larger than the sum of its proper divisors (11940547).

313990973 is a wasteful number, since it uses less digits than its factorization.

313990973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109627.

The product of its (nonzero) digits is 137781, while the sum is 44.

The square root of 313990973 is about 17719.7904332980. The cubic root of 313990973 is about 679.6819252034.

The spelling of 313990973 in words is "three hundred thirteen million, nine hundred ninety thousand, nine hundred seventy-three".