6878511 has 12 divisors (see below), whose sum is σ = 9969960. Its totient is φ = 4569840.

The previous prime is 6878491. The next prime is 6878519. The reversal of 6878511 is 1158786.

It is not a de Polignac number, because 6878511 - 2⁵ = 6878479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6878519) 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, 1825 + ... + 4133.

It is an arithmetic number, because the mean of its divisors is an integer number (830830).

Almost surely, 2^6878511 is an apocalyptic number.

6878511 is a deficient number, since it is larger than the sum of its proper divisors (3091449).

6878511 is a wasteful number, since it uses less digits than its factorization.

6878511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2646 (or 2643 counting only the distinct ones).

The product of its digits is 13440, while the sum is 36.

The square root of 6878511 is about 2622.6915563977. The cubic root of 6878511 is about 190.1799864170.

The spelling of 6878511 in words is "six million, eight hundred seventy-eight thousand, five hundred eleven".