622489 has 8 divisors (see below), whose sum is σ = 753408. Its totient is φ = 502080.

The previous prime is 622483. The next prime is 622493. The reversal of 622489 is 984226.

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 622489 - 2³ = 622481 is a prime.

It is a Duffinian number.

622489 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 622489.

It is not an unprimeable number, because it can be changed into a prime (622481) 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, 2497 + ... + 2734.

It is an arithmetic number, because the mean of its divisors is an integer number (94176).

2⁶²²⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

622489 is a deficient number, since it is larger than the sum of its proper divisors (130919).

622489 is a wasteful number, since it uses less digits than its factorization.

622489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5255.

The product of its digits is 6912, while the sum is 31.

The square root of 622489 is about 788.9797209054. The cubic root of 622489 is about 85.3841436629.

It can be divided in two parts, 622 and 489, that added together give a palindrome (1111).

The spelling of 622489 in words is "six hundred twenty-two thousand, four hundred eighty-nine".