313607389 has 2 divisors, whose sum is σ = 313607390. Its totient is φ = 313607388.

The previous prime is 313607321. The next prime is 313607417. The reversal of 313607389 is 983706313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 226502500 + 87104889 = 15050^2 + 9333^2 .

It is a cyclic number.

It is not a de Polignac number, because 313607389 - 2²¹ = 311510237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313607309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156803694 + 156803695.

It is an arithmetic number, because the mean of its divisors is an integer number (156803695).

Almost surely, 2^313607389 is an apocalyptic number.

It is an amenable number.

313607389 is a deficient number, since it is larger than the sum of its proper divisors (1).

313607389 is an equidigital number, since it uses as much as digits as its factorization.

313607389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 313607389 is about 17708.9635213357. The cubic root of 313607389 is about 679.4050368289.

The spelling of 313607389 in words is "three hundred thirteen million, six hundred seven thousand, three hundred eighty-nine".