318677 has 2 divisors, whose sum is σ = 318678. Its totient is φ = 318676.

The previous prime is 318671. The next prime is 318679. The reversal of 318677 is 776813.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188356 + 130321 = 434^2 + 361^2 .

It is an emirp because it is prime and its reverse (776813) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 318677 - 2¹² = 314581 is a prime.

Together with 318679, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 318677.

It is not a weakly prime, because it can be changed into another prime (318671) 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, 159338 + 159339.

It is an arithmetic number, because the mean of its divisors is an integer number (159339).

2³¹⁸⁶⁷⁷ is an apocalyptic number.

It is an amenable number.

318677 is a deficient number, since it is larger than the sum of its proper divisors (1).

318677 is an equidigital number, since it uses as much as digits as its factorization.

318677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7056, while the sum is 32.

The square root of 318677 is about 564.5148359432. The cubic root of 318677 is about 68.3046452384.

The spelling of 318677 in words is "three hundred eighteen thousand, six hundred seventy-seven".