313396789 has 2 divisors, whose sum is σ = 313396790. Its totient is φ = 313396788.

The previous prime is 313396753. The next prime is 313396793. The reversal of 313396789 is 987693313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 258888100 + 54508689 = 16090^2 + 7383^2 .

It is a cyclic number.

It is not a de Polignac number, because 313396789 - 2⁹ = 313396277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313396729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156698394 + 156698395.

It is an arithmetic number, because the mean of its divisors is an integer number (156698395).

Almost surely, 2^313396789 is an apocalyptic number.

It is an amenable number.

313396789 is a deficient number, since it is larger than the sum of its proper divisors (1).

313396789 is an equidigital number, since it uses as much as digits as its factorization.

313396789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 734832, while the sum is 49.

The square root of 313396789 is about 17703.0163813967. The cubic root of 313396789 is about 679.2529201523.

The spelling of 313396789 in words is "three hundred thirteen million, three hundred ninety-six thousand, seven hundred eighty-nine".