622724 has 12 divisors (see below), whose sum is σ = 1098048. Its totient is φ = 309000.

The previous prime is 622723. The next prime is 622729. The reversal of 622724 is 427226.

It is a self number, because there is not a number n which added to its sum of digits gives 622724.

It is not an unprimeable number, because it can be changed into a prime (622723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89 + ... + 1119.

It is an arithmetic number, because the mean of its divisors is an integer number (91504).

2⁶²²⁷²⁴ is an apocalyptic number.

It is an amenable number.

622724 is a deficient number, since it is larger than the sum of its proper divisors (475324).

622724 is a wasteful number, since it uses less digits than its factorization.

622724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186 (or 1184 counting only the distinct ones).

The product of its digits is 1344, while the sum is 23.

The square root of 622724 is about 789.1286333672. The cubic root of 622724 is about 85.3948869581.

The spelling of 622724 in words is "six hundred twenty-two thousand, seven hundred twenty-four".