6455720 has 32 divisors (see below), whose sum is σ = 14605920. Its totient is φ = 2568000.

The previous prime is 6455717. The next prime is 6455741. The reversal of 6455720 is 275546.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9719 + ... + 10361.

It is an arithmetic number, because the mean of its divisors is an integer number (456435).

Almost surely, 2^6455720 is an apocalyptic number.

It is an amenable number.

6455720 is an abundant number, since it is smaller than the sum of its proper divisors (8150200).

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

6455720 is a wasteful number, since it uses less digits than its factorization.

6455720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 6455720 is about 2540.8108941832. The cubic root of 6455720 is about 186.2008082931.

The spelling of 6455720 in words is "six million, four hundred fifty-five thousand, seven hundred twenty".