6648937 has 8 divisors (see below), whose sum is σ = 6927552. Its totient is φ = 6375600.

The previous prime is 6648883. The next prime is 6648977. The reversal of 6648937 is 7398466.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6648937 - 2⁷ = 6648809 is a prime.

It is a Duffinian number.

6648937 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6648893 and 6648902.

It is not an unprimeable number, because it can be changed into a prime (6648977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1362 + ... + 3892.

It is an arithmetic number, because the mean of its divisors is an integer number (865944).

Almost surely, 2^6648937 is an apocalyptic number.

It is an amenable number.

6648937 is a deficient number, since it is larger than the sum of its proper divisors (278615).

6648937 is a wasteful number, since it uses less digits than its factorization.

6648937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639.

The product of its digits is 217728, while the sum is 43.

The square root of 6648937 is about 2578.5532765487. The cubic root of 6648937 is about 188.0402151030.

The spelling of 6648937 in words is "six million, six hundred forty-eight thousand, nine hundred thirty-seven".