6622659 has 12 divisors (see below), whose sum is σ = 10069800. Its totient is φ = 4182624.

The previous prime is 6622631. The next prime is 6622661. The reversal of 6622659 is 9562266.

It is not a de Polignac number, because 6622659 - 2⁷ = 6622531 is a prime.

It is a super-2 number, since 2×6622659² = 87719224460562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6622619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19194 + ... + 19535.

It is an arithmetic number, because the mean of its divisors is an integer number (839150).

Almost surely, 2^6622659 is an apocalyptic number.

6622659 is a deficient number, since it is larger than the sum of its proper divisors (3447141).

6622659 is a wasteful number, since it uses less digits than its factorization.

6622659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38754 (or 38751 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 6622659 is about 2573.4527390259. The cubic root of 6622659 is about 187.7921631805.

It can be divided in two parts, 662 and 2659, that added together give a triangular number (3321 = T₈₁).

The spelling of 6622659 in words is "six million, six hundred twenty-two thousand, six hundred fifty-nine".