6538887 has 24 divisors (see below), whose sum is σ = 9959040. Its totient is φ = 4286520.

The previous prime is 6538879. The next prime is 6538927. The reversal of 6538887 is 7888356.

6538887 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 6538887 - 2³ = 6538879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6538817) 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, 17064 + ... + 17442.

It is an arithmetic number, because the mean of its divisors is an integer number (414960).

Almost surely, 2^6538887 is an apocalyptic number.

6538887 is a deficient number, since it is larger than the sum of its proper divisors (3420153).

6538887 is an equidigital number, since it uses as much as digits as its factorization.

6538887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 453 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 6538887 is about 2557.1247525297. The cubic root of 6538887 is about 186.9969877597.

The spelling of 6538887 in words is "six million, five hundred thirty-eight thousand, eight hundred eighty-seven".