6623746 has 8 divisors (see below), whose sum is σ = 10098684. Its totient is φ = 3257520.

The previous prime is 6623741. The next prime is 6623759. The reversal of 6623746 is 6473266.

It can be written as a sum of positive squares in 2 ways, for example, as 6579225 + 44521 = 2565^2 + 211^2 .

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

It is a super-2 number, since 2×6623746² = 87748022145032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6623741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27025 + ... + 27268.

Almost surely, 2^6623746 is an apocalyptic number.

6623746 is a deficient number, since it is larger than the sum of its proper divisors (3474938).

6623746 is a wasteful number, since it uses less digits than its factorization.

6623746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54356.

The product of its digits is 36288, while the sum is 34.

The square root of 6623746 is about 2573.6639252241. The cubic root of 6623746 is about 187.8024369449.

The spelling of 6623746 in words is "six million, six hundred twenty-three thousand, seven hundred forty-six".