318683797 has 2 divisors, whose sum is σ = 318683798. Its totient is φ = 318683796.

The previous prime is 318683779. The next prime is 318683801. The reversal of 318683797 is 797386813.

It is a happy number.

Together with previous prime (318683779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212984836 + 105698961 = 14594^2 + 10281^2 .

It is a cyclic number.

It is not a de Polignac number, because 318683797 - 2⁷ = 318683669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318683747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159341898 + 159341899.

It is an arithmetic number, because the mean of its divisors is an integer number (159341899).

Almost surely, 2^318683797 is an apocalyptic number.

It is an amenable number.

318683797 is a deficient number, since it is larger than the sum of its proper divisors (1).

318683797 is an equidigital number, since it uses as much as digits as its factorization.

318683797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 52.

The square root of 318683797 is about 17851.7169202293. The cubic root of 318683797 is about 683.0513085380.

The spelling of 318683797 in words is "three hundred eighteen million, six hundred eighty-three thousand, seven hundred ninety-seven".