623568 has 40 divisors (see below), whose sum is σ = 1758816. Its totient is φ = 188800.

The previous prime is 623563. The next prime is 623591. The reversal of 623568 is 865326.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623563) by changing a digit.

623568 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, 63 + ... + 1118.

2⁶²³⁵⁶⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 623568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (879408).

623568 is an abundant number, since it is smaller than the sum of its proper divisors (1135248).

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

623568 is a wasteful number, since it uses less digits than its factorization.

623568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203 (or 1197 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 623568 is about 789.6632193537. The cubic root of 623568 is about 85.4334491183.

The spelling of 623568 in words is "six hundred twenty-three thousand, five hundred sixty-eight".