6877989 has 24 divisors (see below), whose sum is σ = 10483200. Its totient is φ = 4336992.

The previous prime is 6877963. The next prime is 6877993. The reversal of 6877989 is 9897786.

6877989 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6877989 - 2⁵ = 6877957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6877919) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30732 + ... + 30954.

It is an arithmetic number, because the mean of its divisors is an integer number (436800).

Almost surely, 2^6877989 is an apocalyptic number.

6877989 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

6877989 is a deficient number, since it is larger than the sum of its proper divisors (3605211).

6877989 is a wasteful number, since it uses less digits than its factorization.

6877989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 398 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 54.

The square root of 6877989 is about 2622.5920384231. The cubic root of 6877989 is about 190.1751754695.

The spelling of 6877989 in words is "six million, eight hundred seventy-seven thousand, nine hundred eighty-nine".