6622609 has 8 divisors (see below), whose sum is σ = 7611968. Its totient is φ = 5644080.

The previous prime is 6622601. The next prime is 6622619. The reversal of 6622609 is 9062266.

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 6622609 - 2³ = 6622601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6622601) by changing a digit.

It is a Zeisel number, with parameters (29, -22).

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1347 + ... + 3880.

It is an arithmetic number, because the mean of its divisors is an integer number (951496).

Almost surely, 2^6622609 is an apocalyptic number.

It is an amenable number.

6622609 is a deficient number, since it is larger than the sum of its proper divisors (989359).

6622609 is a wasteful number, since it uses less digits than its factorization.

6622609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5415.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 6622609 is about 2573.4430244324. The cubic root of 6622609 is about 187.7916905792.

The spelling of 6622609 in words is "six million, six hundred twenty-two thousand, six hundred nine".