311344417 has 2 divisors, whose sum is σ = 311344418. Its totient is φ = 311344416.

The previous prime is 311344379. The next prime is 311344441. The reversal of 311344417 is 714443113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191573281 + 119771136 = 13841^2 + 10944^2 .

It is a cyclic number.

It is not a de Polignac number, because 311344417 - 2⁷ = 311344289 is a prime.

It is not a weakly prime, because it can be changed into another prime (311344217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155672208 + 155672209.

It is an arithmetic number, because the mean of its divisors is an integer number (155672209).

Almost surely, 2^311344417 is an apocalyptic number.

It is an amenable number.

311344417 is a deficient number, since it is larger than the sum of its proper divisors (1).

311344417 is an equidigital number, since it uses as much as digits as its factorization.

311344417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 28.

The square root of 311344417 is about 17644.9544346252. The cubic root of 311344417 is about 677.7669083559.

The spelling of 311344417 in words is "three hundred eleven million, three hundred forty-four thousand, four hundred seventeen".