311434867 has 2 divisors, whose sum is σ = 311434868. Its totient is φ = 311434866.

The previous prime is 311434847. The next prime is 311434873. The reversal of 311434867 is 768434113.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311434867 is a prime.

It is not a weakly prime, because it can be changed into another prime (311434847) 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, 155717433 + 155717434.

It is an arithmetic number, because the mean of its divisors is an integer number (155717434).

Almost surely, 2^311434867 is an apocalyptic number.

311434867 is a deficient number, since it is larger than the sum of its proper divisors (1).

311434867 is an equidigital number, since it uses as much as digits as its factorization.

311434867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 37.

The square root of 311434867 is about 17647.5173041422. The cubic root of 311434867 is about 677.8325356568.

The spelling of 311434867 in words is "three hundred eleven million, four hundred thirty-four thousand, eight hundred sixty-seven".