622534989 has 16 divisors (see below), whose sum is σ = 843913728. Its totient is φ = 408111792.

The previous prime is 622534973. The next prime is 622534993. The reversal of 622534989 is 989435226.

It is a happy number.

It is not a de Polignac number, because 622534989 - 2⁴ = 622534973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622534999) 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 15 ways as a sum of consecutive naturals, for example, 127654 + ... + 132440.

It is an arithmetic number, because the mean of its divisors is an integer number (52744608).

Almost surely, 2^622534989 is an apocalyptic number.

It is an amenable number.

622534989 is a deficient number, since it is larger than the sum of its proper divisors (221378739).

622534989 is a wasteful number, since it uses less digits than its factorization.

622534989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5504.

The product of its digits is 933120, while the sum is 48.

The square root of 622534989 is about 24950.6510736694. The cubic root of 622534989 is about 853.8624631567.

It can be divided in two parts, 6225 and 34989, that added together give a palindrome (41214).

The spelling of 622534989 in words is "six hundred twenty-two million, five hundred thirty-four thousand, nine hundred eighty-nine".