623972 has 12 divisors (see below), whose sum is σ = 1115520. Its totient is φ = 305256.

The previous prime is 623963. The next prime is 623977. The reversal of 623972 is 279326.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (623977) by changing a digit.

623972 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, 1472 + ... + 1847.

It is an arithmetic number, because the mean of its divisors is an integer number (92960).

2⁶²³⁹⁷² is an apocalyptic number.

It is an amenable number.

623972 is a deficient number, since it is larger than the sum of its proper divisors (491548).

623972 is a wasteful number, since it uses less digits than its factorization.

623972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3370 (or 3368 counting only the distinct ones).

The product of its digits is 4536, while the sum is 29.

The square root of 623972 is about 789.9189831875. The cubic root of 623972 is about 85.4518954691.

The spelling of 623972 in words is "six hundred twenty-three thousand, nine hundred seventy-two".