313789811 has 2 divisors, whose sum is σ = 313789812. Its totient is φ = 313789810.

The previous prime is 313789727. The next prime is 313789867. The reversal of 313789811 is 118987313.

It is a strong prime.

It is an emirp because it is prime and its reverse (118987313) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313789811 is a prime.

It is not a weakly prime, because it can be changed into another prime (313789211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156894905 + 156894906.

It is an arithmetic number, because the mean of its divisors is an integer number (156894906).

Almost surely, 2^313789811 is an apocalyptic number.

313789811 is a deficient number, since it is larger than the sum of its proper divisors (1).

313789811 is an equidigital number, since it uses as much as digits as its factorization.

313789811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 41.

The square root of 313789811 is about 17714.1133280783. The cubic root of 313789811 is about 679.5367454626.

The spelling of 313789811 in words is "three hundred thirteen million, seven hundred eighty-nine thousand, eight hundred eleven".