313927919 has 4 divisors (see below), whose sum is σ = 314113320. Its totient is φ = 313742520.

The previous prime is 313927883. The next prime is 313927921. The reversal of 313927919 is 919729313.

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

It is a cyclic number.

It is not a de Polignac number, because 313927919 - 2²⁸ = 45492463 is a prime.

It is a super-2 number, since 2×313927919² = 197101476655341122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313927919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313927949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90137 + ... + 93554.

It is an arithmetic number, because the mean of its divisors is an integer number (78528330).

Almost surely, 2^313927919 is an apocalyptic number.

313927919 is a deficient number, since it is larger than the sum of its proper divisors (185401).

313927919 is a wasteful number, since it uses less digits than its factorization.

313927919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185400.

The product of its digits is 91854, while the sum is 44.

The square root of 313927919 is about 17718.0111468528. The cubic root of 313927919 is about 679.6364254525.

The spelling of 313927919 in words is "three hundred thirteen million, nine hundred twenty-seven thousand, nine hundred nineteen".