316196779 has 2 divisors, whose sum is σ = 316196780. Its totient is φ = 316196778.

The previous prime is 316196743. The next prime is 316196809. The reversal of 316196779 is 977691613.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 316196779 - 2¹⁷ = 316065707 is a prime.

It is not a weakly prime, because it can be changed into another prime (316196729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158098389 + 158098390.

It is an arithmetic number, because the mean of its divisors is an integer number (158098390).

Almost surely, 2^316196779 is an apocalyptic number.

316196779 is a deficient number, since it is larger than the sum of its proper divisors (1).

316196779 is an equidigital number, since it uses as much as digits as its factorization.

316196779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 428652, while the sum is 49.

The square root of 316196779 is about 17781.9228150389. The cubic root of 316196779 is about 681.2698151631.

The spelling of 316196779 in words is "three hundred sixteen million, one hundred ninety-six thousand, seven hundred seventy-nine".