318685697 has 8 divisors (see below), whose sum is σ = 350907552. Its totient is φ = 287005600.

The previous prime is 318685691. The next prime is 318685711. The reversal of 318685697 is 796586813.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 318685697 - 2⁴ = 318685681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318685691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134204 + ... + 136557.

It is an arithmetic number, because the mean of its divisors is an integer number (43863444).

Almost surely, 2^318685697 is an apocalyptic number.

It is an amenable number.

318685697 is a deficient number, since it is larger than the sum of its proper divisors (32221855).

318685697 is a wasteful number, since it uses less digits than its factorization.

318685697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270879.

The product of its digits is 2177280, while the sum is 53.

The square root of 318685697 is about 17851.7701363198. The cubic root of 318685697 is about 683.0526659911.

The spelling of 318685697 in words is "three hundred eighteen million, six hundred eighty-five thousand, six hundred ninety-seven".