6878651 has 4 divisors (see below), whose sum is σ = 7407792. Its totient is φ = 6349512.

The previous prime is 6878647. The next prime is 6878657. The reversal of 6878651 is 1568786.

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

It is not a de Polignac number, because 6878651 - 2² = 6878647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6878599 and 6878608.

It is not an unprimeable number, because it can be changed into a prime (6878657) 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, 264551 + ... + 264576.

It is an arithmetic number, because the mean of its divisors is an integer number (1851948).

Almost surely, 2^6878651 is an apocalyptic number.

6878651 is a deficient number, since it is larger than the sum of its proper divisors (529141).

6878651 is a wasteful number, since it uses less digits than its factorization.

6878651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529140.

The product of its digits is 80640, while the sum is 41.

The square root of 6878651 is about 2622.7182464001. The cubic root of 6878651 is about 190.1812766680.

The spelling of 6878651 in words is "six million, eight hundred seventy-eight thousand, six hundred fifty-one".