318772 has 6 divisors (see below), whose sum is σ = 557858. Its totient is φ = 159384.

The previous prime is 318751. The next prime is 318781. The reversal of 318772 is 277813.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 318096 + 676 = 564^2 + 26^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 318772.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39843 + ... + 39850.

2³¹⁸⁷⁷² is an apocalyptic number.

It is an amenable number.

318772 is a deficient number, since it is larger than the sum of its proper divisors (239086).

318772 is a wasteful number, since it uses less digits than its factorization.

318772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79697 (or 79695 counting only the distinct ones).

The product of its digits is 2352, while the sum is 28.

The square root of 318772 is about 564.5989727231. The cubic root of 318772 is about 68.3114319395.

The spelling of 318772 in words is "three hundred eighteen thousand, seven hundred seventy-two".