6869988 has 24 divisors (see below), whose sum is σ = 17811360. Its totient is φ = 2289960.

The previous prime is 6869987. The next prime is 6870011. The reversal of 6869988 is 8899686.

6869988 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (6869987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31698 + ... + 31913.

It is an arithmetic number, because the mean of its divisors is an integer number (742140).

Almost surely, 2^6869988 is an apocalyptic number.

It is an amenable number.

6869988 is an abundant number, since it is smaller than the sum of its proper divisors (10941372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6869988 is a wasteful number, since it uses less digits than its factorization.

6869988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63624 (or 63616 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 6869988 is about 2621.0661952725. The cubic root of 6869988 is about 190.1014047801.

The spelling of 6869988 in words is "six million, eight hundred sixty-nine thousand, nine hundred eighty-eight".