6645627 has 6 divisors (see below), whose sum is σ = 9599252. Its totient is φ = 4430412.

The previous prime is 6645619. The next prime is 6645637. The reversal of 6645627 is 7265466.

6645627 is a `hidden beast` number, since 6 + 645 + 6 + 2 + 7 = 666.

It is not a de Polignac number, because 6645627 - 2³ = 6645619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6645591 and 6645600.

It is not an unprimeable number, because it can be changed into a prime (6645637) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 369193 + ... + 369210.

Almost surely, 2^6645627 is an apocalyptic number.

6645627 is a deficient number, since it is larger than the sum of its proper divisors (2953625).

6645627 is a wasteful number, since it uses less digits than its factorization.

6645627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738409 (or 738406 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 6645627 is about 2577.9113638758. The cubic root of 6645627 is about 188.0090062835.

The spelling of 6645627 in words is "six million, six hundred forty-five thousand, six hundred twenty-seven".