6505872 has 80 divisors (see below), whose sum is σ = 17998848. Its totient is φ = 2020480.

The previous prime is 6505867. The next prime is 6505931. The reversal of 6505872 is 2785056.

It is a happy number.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78343 + ... + 78425.

Almost surely, 2^6505872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6505872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8999424).

6505872 is an abundant number, since it is smaller than the sum of its proper divisors (11492976).

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

6505872 is a wasteful number, since it uses less digits than its factorization.

6505872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 6505872 is about 2550.6610907763. The cubic root of 6505872 is about 186.6817391457.

The spelling of 6505872 in words is "six million, five hundred five thousand, eight hundred seventy-two".