6622645 has 8 divisors (see below), whose sum is σ = 8132256. Its totient is φ = 5174736.

The previous prime is 6622631. The next prime is 6622661. The reversal of 6622645 is 5462266.

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 6622645 - 2¹¹ = 6620597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15187 + ... + 15616.

It is an arithmetic number, because the mean of its divisors is an integer number (1016532).

Almost surely, 2^6622645 is an apocalyptic number.

It is an amenable number.

6622645 is a deficient number, since it is larger than the sum of its proper divisors (1509611).

6622645 is a wasteful number, since it uses less digits than its factorization.

6622645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30851.

The product of its digits is 17280, while the sum is 31.

The square root of 6622645 is about 2573.4500189434. The cubic root of 6622645 is about 187.7920308524.

The spelling of 6622645 in words is "six million, six hundred twenty-two thousand, six hundred forty-five".