313794409 has 2 divisors, whose sum is σ = 313794410. Its totient is φ = 313794408.

The previous prime is 313794319. The next prime is 313794457. The reversal of 313794409 is 904497313.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 241118784 + 72675625 = 15528^2 + 8525^2 .

It is a cyclic number.

It is not a de Polignac number, because 313794409 - 2⁷ = 313794281 is a prime.

It is a super-2 number, since 2×313794409² = 196933862239318562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (313794209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156897204 + 156897205.

It is an arithmetic number, because the mean of its divisors is an integer number (156897205).

Almost surely, 2^313794409 is an apocalyptic number.

It is an amenable number.

313794409 is a deficient number, since it is larger than the sum of its proper divisors (1).

313794409 is an equidigital number, since it uses as much as digits as its factorization.

313794409 is an odious number, because the sum of its binary digits is odd.

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

The square root of 313794409 is about 17714.2431111239. The cubic root of 313794409 is about 679.5400645577.

The spelling of 313794409 in words is "three hundred thirteen million, seven hundred ninety-four thousand, four hundred nine".