311464897 has 2 divisors, whose sum is σ = 311464898. Its totient is φ = 311464896.

The previous prime is 311464877. The next prime is 311464903. The reversal of 311464897 is 798464113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 280093696 + 31371201 = 16736^2 + 5601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311464897 is a prime.

It is not a weakly prime, because it can be changed into another prime (311464807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155732448 + 155732449.

It is an arithmetic number, because the mean of its divisors is an integer number (155732449).

Almost surely, 2^311464897 is an apocalyptic number.

It is an amenable number.

311464897 is a deficient number, since it is larger than the sum of its proper divisors (1).

311464897 is an equidigital number, since it uses as much as digits as its factorization.

311464897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 43.

The square root of 311464897 is about 17648.3681115280. The cubic root of 311464897 is about 677.8543215463.

The spelling of 311464897 in words is "three hundred eleven million, four hundred sixty-four thousand, eight hundred ninety-seven".