6624994 has 8 divisors (see below), whose sum is σ = 10036188. Its totient is φ = 3279600.

The previous prime is 6624973. The next prime is 6625001. The reversal of 6624994 is 4994266.

It can be written as a sum of positive squares in 2 ways, for example, as 4182025 + 2442969 = 2045^2 + 1563^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 16197 + ... + 16600.

Almost surely, 2^6624994 is an apocalyptic number.

6624994 is a deficient number, since it is larger than the sum of its proper divisors (3411194).

6624994 is a wasteful number, since it uses less digits than its factorization.

6624994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32900.

The product of its digits is 93312, while the sum is 40.

The square root of 6624994 is about 2573.9063697035. The cubic root of 6624994 is about 187.8142310124.

The spelling of 6624994 in words is "six million, six hundred twenty-four thousand, nine hundred ninety-four".