319968893 has 4 divisors (see below), whose sum is σ = 333880608. Its totient is φ = 306057180.

The previous prime is 319968889. The next prime is 319968923. The reversal of 319968893 is 398869913.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 319968893 - 2² = 319968889 is a prime.

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 (319968823) 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, 6955823 + ... + 6955868.

It is an arithmetic number, because the mean of its divisors is an integer number (83470152).

Almost surely, 2^319968893 is an apocalyptic number.

It is an amenable number.

319968893 is a deficient number, since it is larger than the sum of its proper divisors (13911715).

319968893 is a wasteful number, since it uses less digits than its factorization.

319968893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13911714.

The product of its digits is 2519424, while the sum is 56.

The square root of 319968893 is about 17887.6743317850. The cubic root of 319968893 is about 683.9682145267.

The spelling of 319968893 in words is "three hundred nineteen million, nine hundred sixty-eight thousand, eight hundred ninety-three".