622825 has 12 divisors (see below), whose sum is σ = 882880. Its totient is φ = 426960.

The previous prime is 622813. The next prime is 622849. The reversal of 622825 is 528226.

It is not a de Polignac number, because 622825 - 2⁵ = 622793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 622825.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1605 + ... + 1954.

2⁶²²⁸²⁵ is an apocalyptic number.

It is an amenable number.

622825 is a deficient number, since it is larger than the sum of its proper divisors (260055).

622825 is a wasteful number, since it uses less digits than its factorization.

622825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3576 (or 3571 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 622825 is about 789.1926254090. The cubic root of 622825 is about 85.3995034588.

The spelling of 622825 in words is "six hundred twenty-two thousand, eight hundred twenty-five".