6648878 has 8 divisors (see below), whose sum is σ = 10137000. Its totient is φ = 3269880.

The previous prime is 6648839. The next prime is 6648883. The reversal of 6648878 is 8788466.

It is a happy number.

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

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27128 + ... + 27371.

It is an arithmetic number, because the mean of its divisors is an integer number (1267125).

Almost surely, 2^6648878 is an apocalyptic number.

6648878 is a deficient number, since it is larger than the sum of its proper divisors (3488122).

6648878 is a wasteful number, since it uses less digits than its factorization.

6648878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54562.

The product of its digits is 516096, while the sum is 47.

The square root of 6648878 is about 2578.5418359996. The cubic root of 6648878 is about 188.0396589036.

It can be divided in two parts, 66488 and 78, that added together give a palindrome (66566).

The spelling of 6648878 in words is "six million, six hundred forty-eight thousand, eight hundred seventy-eight".