623884 has 12 divisors (see below), whose sum is σ = 1149400. Its totient is φ = 295488.

The previous prime is 623881. The next prime is 623893. The reversal of 623884 is 488326.

It is a happy number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4029 + ... + 4180.

2⁶²³⁸⁸⁴ is an apocalyptic number.

It is an amenable number.

623884 is a deficient number, since it is larger than the sum of its proper divisors (525516).

623884 is a wasteful number, since it uses less digits than its factorization.

623884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8232 (or 8230 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 623884 is about 789.8632793085. The cubic root of 623884 is about 85.4478781305.

The spelling of 623884 in words is "six hundred twenty-three thousand, eight hundred eighty-four".