6672621 has 8 divisors (see below), whose sum is σ = 8910880. Its totient is φ = 4441392.

The previous prime is 6672571. The next prime is 6672623. The reversal of 6672621 is 1262766.

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

It is not a de Polignac number, because 6672621 - 2⁶ = 6672557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6672623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146 + ... + 3828.

It is an arithmetic number, because the mean of its divisors is an integer number (1113860).

Almost surely, 2^6672621 is an apocalyptic number.

It is an amenable number.

6672621 is a deficient number, since it is larger than the sum of its proper divisors (2238259).

6672621 is a wasteful number, since it uses less digits than its factorization.

6672621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3515.

The product of its digits is 6048, while the sum is 30.

The square root of 6672621 is about 2583.1416918164. The cubic root of 6672621 is about 188.2632215246.

The spelling of 6672621 in words is "six million, six hundred seventy-two thousand, six hundred twenty-one".