622506 has 24 divisors (see below), whose sum is σ = 1326240. Its totient is φ = 194752.

The previous prime is 622493. The next prime is 622513. The reversal of 622506 is 605226.

It is a congruent number.

It is an unprimeable number.

622506 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1555 + ... + 1913.

It is an arithmetic number, because the mean of its divisors is an integer number (55260).

2⁶²²⁵⁰⁶ is an apocalyptic number.

622506 is an abundant number, since it is smaller than the sum of its proper divisors (703734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

622506 is a wasteful number, since it uses less digits than its factorization.

622506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 622506 is about 788.9904942393. The cubic root of 622506 is about 85.3849209282.

It can be divided in two parts, 622 and 506, that added together give a triangular number (1128 = T₄₇).

The spelling of 622506 in words is "six hundred twenty-two thousand, five hundred six".