623308 has 24 divisors (see below), whose sum is σ = 1264032. Its totient is φ = 263424.

The previous prime is 623303. The next prime is 623321. The reversal of 623308 is 803326.

It is not an unprimeable number, because it can be changed into a prime (623303) 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, 3066 + ... + 3262.

It is an arithmetic number, because the mean of its divisors is an integer number (52668).

2⁶²³³⁰⁸ is an apocalyptic number.

It is an amenable number.

623308 is an abundant number, since it is smaller than the sum of its proper divisors (640724).

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

623308 is a wasteful number, since it uses less digits than its factorization.

623308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 623308 is about 789.4985750462. The cubic root of 623308 is about 85.4215734903.

Subtracting from 623308 its sum of digits (22), we obtain a triangular number (623286 = T₁₁₁₆).

The spelling of 623308 in words is "six hundred twenty-three thousand, three hundred eight".