6624690 has 32 divisors (see below), whose sum is σ = 16592256. Its totient is φ = 1689600.

The previous prime is 6624671. The next prime is 6624721. The reversal of 6624690 is 964266.

It is a super-2 number, since 2×6624690² = 87773035192200, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4111 + ... + 5490.

It is an arithmetic number, because the mean of its divisors is an integer number (518508).

Almost surely, 2^6624690 is an apocalyptic number.

6624690 is an abundant number, since it is smaller than the sum of its proper divisors (9967566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6624690 is a wasteful number, since it uses less digits than its factorization.

6624690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9634.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 6624690 is about 2573.8473148188. The cubic root of 6624690 is about 187.8113582350.

The spelling of 6624690 in words is "six million, six hundred twenty-four thousand, six hundred ninety".