6645622 has 8 divisors (see below), whose sum is σ = 10026576. Its totient is φ = 3303432.

The previous prime is 6645619. The next prime is 6645637. The reversal of 6645622 is 2265466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9258 + ... + 9949.

It is an arithmetic number, because the mean of its divisors is an integer number (1253322).

Almost surely, 2^6645622 is an apocalyptic number.

6645622 is a deficient number, since it is larger than the sum of its proper divisors (3380954).

6645622 is a wasteful number, since it uses less digits than its factorization.

6645622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19382.

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

The square root of 6645622 is about 2577.9103940983. The cubic root of 6645622 is about 188.0089591324.

The spelling of 6645622 in words is "six million, six hundred forty-five thousand, six hundred twenty-two".