6455872 has 28 divisors (see below), whose sum is σ = 12915900. Its totient is φ = 3201536.

The previous prime is 6455863. The next prime is 6455879. The reversal of 6455872 is 2785546.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4096576 + 2359296 = 2024^2 + 1536^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6455879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9198 + ... + 9874.

Almost surely, 2^6455872 is an apocalyptic number.

It is an amenable number.

6455872 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

6455872 is a wasteful number, since it uses less digits than its factorization.

6455872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838 (or 828 counting only the distinct ones).

The product of its digits is 67200, while the sum is 37.

The square root of 6455872 is about 2540.8408057177. The cubic root of 6455872 is about 186.2022696484.

The spelling of 6455872 in words is "six million, four hundred fifty-five thousand, eight hundred seventy-two".