318923 has 8 divisors (see below), whose sum is σ = 353280. Its totient is φ = 285480.

The previous prime is 318919. The next prime is 318949. The reversal of 318923 is 329813.

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 318923 - 2² = 318919 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 318892 and 318901.

It is not an unprimeable number, because it can be changed into a prime (318023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 686 + ... + 1052.

It is an arithmetic number, because the mean of its divisors is an integer number (44160).

2³¹⁸⁹²³ is an apocalyptic number.

318923 is a deficient number, since it is larger than the sum of its proper divisors (34357).

318923 is a wasteful number, since it uses less digits than its factorization.

318923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457.

The product of its digits is 1296, while the sum is 26.

The square root of 318923 is about 564.7326801240. The cubic root of 318923 is about 68.3222164479.

The spelling of 318923 in words is "three hundred eighteen thousand, nine hundred twenty-three".