6623916 has 24 divisors (see below), whose sum is σ = 16645104. Its totient is φ = 2038080.

The previous prime is 6623899. The next prime is 6623927. The reversal of 6623916 is 6193266.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21075 + ... + 21386.

It is an arithmetic number, because the mean of its divisors is an integer number (693546).

Almost surely, 2^6623916 is an apocalyptic number.

It is an amenable number.

6623916 is an abundant number, since it is smaller than the sum of its proper divisors (10021188).

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

6623916 is a wasteful number, since it uses less digits than its factorization.

6623916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42481 (or 42479 counting only the distinct ones).

The product of its digits is 11664, while the sum is 33.

The square root of 6623916 is about 2573.6969518574. The cubic root of 6623916 is about 187.8040435957.

The spelling of 6623916 in words is "six million, six hundred twenty-three thousand, nine hundred sixteen".