319420793 has 2 divisors, whose sum is σ = 319420794. Its totient is φ = 319420792.

The previous prime is 319420753. The next prime is 319420811. The reversal of 319420793 is 397024913.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166848889 + 152571904 = 12917^2 + 12352^2 .

It is a cyclic number.

It is not a de Polignac number, because 319420793 - 2⁸ = 319420537 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (319420753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159710396 + 159710397.

It is an arithmetic number, because the mean of its divisors is an integer number (159710397).

Almost surely, 2^319420793 is an apocalyptic number.

It is an amenable number.

319420793 is a deficient number, since it is larger than the sum of its proper divisors (1).

319420793 is an equidigital number, since it uses as much as digits as its factorization.

319420793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 319420793 is about 17872.3471597885. The cubic root of 319420793 is about 683.5774502513.

The spelling of 319420793 in words is "three hundred nineteen million, four hundred twenty thousand, seven hundred ninety-three".