313403969 has 2 divisors, whose sum is σ = 313403970. Its totient is φ = 313403968.

The previous prime is 313403953. The next prime is 313403989. The reversal of 313403969 is 969304313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 285441025 + 27962944 = 16895^2 + 5288^2 .

It is an emirp because it is prime and its reverse (969304313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313403969 - 2⁴ = 313403953 is a prime.

It is a super-2 number, since 2×313403969² = 196444095569905922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (313403939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156701984 + 156701985.

It is an arithmetic number, because the mean of its divisors is an integer number (156701985).

Almost surely, 2^313403969 is an apocalyptic number.

It is an amenable number.

313403969 is a deficient number, since it is larger than the sum of its proper divisors (1).

313403969 is an equidigital number, since it uses as much as digits as its factorization.

313403969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 38.

The square root of 313403969 is about 17703.2191705351. The cubic root of 313403969 is about 679.2581073983.

The spelling of 313403969 in words is "three hundred thirteen million, four hundred three thousand, nine hundred sixty-nine".