316628 has 12 divisors (see below), whose sum is σ = 596820. Its totient is φ = 146112.

The previous prime is 316621. The next prime is 316633. The reversal of 316628 is 826613.

316628 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in 2 ways, for example, as 58564 + 258064 = 242^2 + 508^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

316628 is an undulating number in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 316597 and 316606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316621) by changing a digit.

316628 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2993 + ... + 3096.

It is an arithmetic number, because the mean of its divisors is an integer number (49735).

2³¹⁶⁶²⁸ is an apocalyptic number.

It is an amenable number.

316628 is a deficient number, since it is larger than the sum of its proper divisors (280192).

316628 is a wasteful number, since it uses less digits than its factorization.

316628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6106 (or 6104 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 316628 is about 562.6970765874. The cubic root of 316628 is about 68.1579373875.

Multiplying 316628 by its sum of digits (26), we get a palindrome (8232328).

The spelling of 316628 in words is "three hundred sixteen thousand, six hundred twenty-eight".