623288 has 16 divisors (see below), whose sum is σ = 1237680. Its totient is φ = 293248.

The previous prime is 623281. The next prime is 623291. The reversal of 623288 is 882326.

It is a self number, because there is not a number n which added to its sum of digits gives 623288.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623281) by changing a digit.

623288 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, 2156 + ... + 2427.

It is an arithmetic number, because the mean of its divisors is an integer number (77355).

2⁶²³²⁸⁸ is an apocalyptic number.

623288 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

623288 is a deficient number, since it is larger than the sum of its proper divisors (614392).

623288 is a wasteful number, since it uses less digits than its factorization.

623288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4606 (or 4602 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 623288 is about 789.4859086773. The cubic root of 623288 is about 85.4206598437.

The spelling of 623288 in words is "six hundred twenty-three thousand, two hundred eighty-eight".