318667 has 4 divisors (see below), whose sum is σ = 320320. Its totient is φ = 317016.

The previous prime is 318653. The next prime is 318671. The reversal of 318667 is 766813.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-318667 is a prime.

It is a Duffinian number.

318667 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (318677) 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 in 3 ways as a sum of consecutive naturals, for example, 492 + ... + 937.

It is an arithmetic number, because the mean of its divisors is an integer number (80080).

2³¹⁸⁶⁶⁷ is an apocalyptic number.

318667 is a deficient number, since it is larger than the sum of its proper divisors (1653).

318667 is a wasteful number, since it uses less digits than its factorization.

318667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652.

The product of its digits is 6048, while the sum is 31.

The square root of 318667 is about 564.5059787106. The cubic root of 318667 is about 68.3039307704.

The spelling of 318667 in words is "three hundred eighteen thousand, six hundred sixty-seven".