623316 has 24 divisors (see below), whose sum is σ = 1469440. Its totient is φ = 205632.

The previous prime is 623303. The next prime is 623321. The reversal of 623316 is 613326.

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 623292 and 623301.

It is a congruent number.

It is an unprimeable number.

623316 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 7 ways as a sum of consecutive naturals, for example, 1320 + ... + 1728.

2⁶²³³¹⁶ is an apocalyptic number.

It is an amenable number.

623316 is an abundant number, since it is smaller than the sum of its proper divisors (846124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

623316 is a wasteful number, since it uses less digits than its factorization.

623316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 541 counting only the distinct ones).

The product of its digits is 648, while the sum is 21.

The square root of 623316 is about 789.5036415369. The cubic root of 623316 is about 85.4219389435.

It can be divided in two parts, 623 and 316, that added together give a palindrome (939).

The spelling of 623316 in words is "six hundred twenty-three thousand, three hundred sixteen".