6390872 has 32 divisors (see below), whose sum is σ = 12787200. Its totient is φ = 2987424.

The previous prime is 6390871. The next prime is 6390883. The reversal of 6390872 is 2780936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6390871) 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, 8279 + ... + 9017.

It is an arithmetic number, because the mean of its divisors is an integer number (399600).

Almost surely, 2^6390872 is an apocalyptic number.

It is an amenable number.

6390872 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

6390872 is a wasteful number, since it uses less digits than its factorization.

6390872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815 (or 811 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 6390872 is about 2528.0174050034. The cubic root of 6390872 is about 185.5752437997.

The spelling of 6390872 in words is "six million, three hundred ninety thousand, eight hundred seventy-two".