319696939 has 4 divisors (see below), whose sum is σ = 319838656. Its totient is φ = 319555224.

The previous prime is 319696931. The next prime is 319696981. The reversal of 319696939 is 939696913.

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 319696939 - 2³ = 319696931 is a prime.

It is a super-2 number, since 2×319696939² = 204412265611939442, 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 319696939.

It is not an unprimeable number, because it can be changed into a prime (319696931) 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, 67419 + ... + 72004.

It is an arithmetic number, because the mean of its divisors is an integer number (79959664).

Almost surely, 2^319696939 is an apocalyptic number.

319696939 is a deficient number, since it is larger than the sum of its proper divisors (141717).

319696939 is a wasteful number, since it uses less digits than its factorization.

319696939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141716.

The product of its digits is 2125764, while the sum is 55.

The square root of 319696939 is about 17880.0710009776. The cubic root of 319696939 is about 683.7743825437.

The spelling of 319696939 in words is "three hundred nineteen million, six hundred ninety-six thousand, nine hundred thirty-nine".