316677761 has 2 divisors, whose sum is σ = 316677762. Its totient is φ = 316677760.

The previous prime is 316677749. The next prime is 316677763. The reversal of 316677761 is 167776613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185804161 + 130873600 = 13631^2 + 11440^2 .

It is an emirp because it is prime and its reverse (167776613) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316677761 is a prime.

Together with 316677763, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (316677763) 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, 158338880 + 158338881.

It is an arithmetic number, because the mean of its divisors is an integer number (158338881).

Almost surely, 2^316677761 is an apocalyptic number.

It is an amenable number.

316677761 is a deficient number, since it is larger than the sum of its proper divisors (1).

316677761 is an equidigital number, since it uses as much as digits as its factorization.

316677761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 222264, while the sum is 44.

The square root of 316677761 is about 17795.4421411776. The cubic root of 316677761 is about 681.6150774924.

The spelling of 316677761 in words is "three hundred sixteen million, six hundred seventy-seven thousand, seven hundred sixty-one".