622531 has 8 divisors (see below), whose sum is σ = 766304. Its totient is φ = 492480.

The previous prime is 622529. The next prime is 622547. The reversal of 622531 is 135226.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 622531 - 2¹ = 622529 is a prime.

It is a super-2 number, since 2×622531² = 775089691922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 622499 and 622508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622561) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3330 + ... + 3511.

It is an arithmetic number, because the mean of its divisors is an integer number (95788).

2⁶²²⁵³¹ is an apocalyptic number.

622531 is a deficient number, since it is larger than the sum of its proper divisors (143773).

622531 is a wasteful number, since it uses less digits than its factorization.

622531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6861.

The product of its digits is 360, while the sum is 19.

The square root of 622531 is about 789.0063371102. The cubic root of 622531 is about 85.3860639396.

Adding to 622531 its reverse (135226), we get a palindrome (757757).

The spelling of 622531 in words is "six hundred twenty-two thousand, five hundred thirty-one".