313409623 has 2 divisors, whose sum is σ = 313409624. Its totient is φ = 313409622.

The previous prime is 313409611. The next prime is 313409639. The reversal of 313409623 is 326904313.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313409623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313409323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156704811 + 156704812.

It is an arithmetic number, because the mean of its divisors is an integer number (156704812).

Almost surely, 2^313409623 is an apocalyptic number.

313409623 is a deficient number, since it is larger than the sum of its proper divisors (1).

313409623 is an equidigital number, since it uses as much as digits as its factorization.

313409623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 313409623 is about 17703.3788582858. The cubic root of 313409623 is about 679.2621921181.

The spelling of 313409623 in words is "three hundred thirteen million, four hundred nine thousand, six hundred twenty-three".