6648115 has 4 divisors (see below), whose sum is σ = 7977744. Its totient is φ = 5318488.

The previous prime is 6648113. The next prime is 6648121. The reversal of 6648115 is 5118466.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6648115 - 2¹ = 6648113 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6648113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664807 + ... + 664816.

It is an arithmetic number, because the mean of its divisors is an integer number (1994436).

Almost surely, 2^6648115 is an apocalyptic number.

6648115 is a deficient number, since it is larger than the sum of its proper divisors (1329629).

6648115 is a wasteful number, since it uses less digits than its factorization.

6648115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329628.

The product of its digits is 5760, while the sum is 31.

The square root of 6648115 is about 2578.3938799183. The cubic root of 6648115 is about 188.0324657226.

The spelling of 6648115 in words is "six million, six hundred forty-eight thousand, one hundred fifteen".