6624881 has 4 divisors (see below), whose sum is σ = 6778992. Its totient is φ = 6470772.

The previous prime is 6624859. The next prime is 6624899. The reversal of 6624881 is 1884266.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6624881 - 2⁶ = 6624817 is a prime.

It is a super-2 number, since 2×6624881² = 87778096528322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6624481) by changing a digit.

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, 76991 + ... + 77076.

It is an arithmetic number, because the mean of its divisors is an integer number (1694748).

Almost surely, 2^6624881 is an apocalyptic number.

It is an amenable number.

6624881 is a deficient number, since it is larger than the sum of its proper divisors (154111).

6624881 is a wasteful number, since it uses less digits than its factorization.

6624881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154110.

The product of its digits is 18432, while the sum is 35.

The square root of 6624881 is about 2573.8844185394. The cubic root of 6624881 is about 187.8131631810.

The spelling of 6624881 in words is "six million, six hundred twenty-four thousand, eight hundred eighty-one".