6447072 has 24 divisors (see below), whose sum is σ = 16923816. Its totient is φ = 2148992.

The previous prime is 6447059. The next prime is 6447073. The reversal of 6447072 is 2707446.

6447072 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6447073) 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, 33483 + ... + 33674.

It is an arithmetic number, because the mean of its divisors is an integer number (705159).

Almost surely, 2^6447072 is an apocalyptic number.

It is an amenable number.

6447072 is an abundant number, since it is smaller than the sum of its proper divisors (10476744).

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

6447072 is a wasteful number, since it uses less digits than its factorization.

6447072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67170 (or 67162 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 6447072 is about 2539.1085049678. The cubic root of 6447072 is about 186.1176270649.

The spelling of 6447072 in words is "six million, four hundred forty-seven thousand, seventy-two".