6889872 has 40 divisors (see below), whose sum is σ = 19418400. Its totient is φ = 2087680.

The previous prime is 6889859. The next prime is 6889873. The reversal of 6889872 is 2789886.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a d-powerful number, because it can be written as 6⁴ + 8⁴ + 8⁴ + 9⁷ + 8⁷ + 7 + 2⁸ .

It is not an unprimeable number, because it can be changed into a prime (6889873) 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, 5997 + ... + 7052.

It is an arithmetic number, because the mean of its divisors is an integer number (485460).

Almost surely, 2^6889872 is an apocalyptic number.

It is an amenable number.

6889872 is an abundant number, since it is smaller than the sum of its proper divisors (12528528).

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

6889872 is a wasteful number, since it uses less digits than its factorization.

6889872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13071 (or 13065 counting only the distinct ones).

The product of its digits is 387072, while the sum is 48.

The square root of 6889872 is about 2624.8565675099. The cubic root of 6889872 is about 190.2846334046.

The spelling of 6889872 in words is "six million, eight hundred eighty-nine thousand, eight hundred seventy-two".