6622489 has 2 divisors, whose sum is σ = 6622490. Its totient is φ = 6622488.

The previous prime is 6622457. The next prime is 6622493. The reversal of 6622489 is 9842266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6579225 + 43264 = 2565^2 + 208^2 .

It is a cyclic number.

It is not a de Polignac number, because 6622489 - 2⁵ = 6622457 is a prime.

It is not a weakly prime, because it can be changed into another prime (6622789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3311244 + 3311245.

It is an arithmetic number, because the mean of its divisors is an integer number (3311245).

Almost surely, 2^6622489 is an apocalyptic number.

It is an amenable number.

6622489 is a deficient number, since it is larger than the sum of its proper divisors (1).

6622489 is an equidigital number, since it uses as much as digits as its factorization.

6622489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 37.

The square root of 6622489 is about 2573.4197092585. The cubic root of 6622489 is about 187.7905563264.

The spelling of 6622489 in words is "six million, six hundred twenty-two thousand, four hundred eighty-nine".