311696929 has 2 divisors, whose sum is σ = 311696930. Its totient is φ = 311696928.

The previous prime is 311696927. The next prime is 311696939. The reversal of 311696929 is 929696113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311451904 + 245025 = 17648^2 + 495^2 .

It is an emirp because it is prime and its reverse (929696113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 311696929 - 2¹ = 311696927 is a prime.

Together with 311696927, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (311696923) 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, 155848464 + 155848465.

It is an arithmetic number, because the mean of its divisors is an integer number (155848465).

Almost surely, 2^311696929 is an apocalyptic number.

It is an amenable number.

311696929 is a deficient number, since it is larger than the sum of its proper divisors (1).

311696929 is an equidigital number, since it uses as much as digits as its factorization.

311696929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 157464, while the sum is 46.

The square root of 311696929 is about 17654.9406399455. The cubic root of 311696929 is about 678.0226068056.

The spelling of 311696929 in words is "three hundred eleven million, six hundred ninety-six thousand, nine hundred twenty-nine".