6878961 has 12 divisors (see below), whose sum is σ = 9959040. Its totient is φ = 4575480.

The previous prime is 6878959. The next prime is 6878981. The reversal of 6878961 is 1698786.

It is a happy number.

It is not a de Polignac number, because 6878961 - 2¹ = 6878959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6878951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7096 + ... + 8006.

It is an arithmetic number, because the mean of its divisors is an integer number (829920).

Almost surely, 2^6878961 is an apocalyptic number.

It is an amenable number.

6878961 is a deficient number, since it is larger than the sum of its proper divisors (3080079).

6878961 is a wasteful number, since it uses less digits than its factorization.

6878961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756 (or 1753 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 6878961 is about 2622.7773447245. Note that the first 3 decimals coincide. The cubic root of 6878961 is about 190.1841335901.

The spelling of 6878961 in words is "six million, eight hundred seventy-eight thousand, nine hundred sixty-one".