6445716 has 12 divisors (see below), whose sum is σ = 15040032. Its totient is φ = 2148568.

The previous prime is 6445711. The next prime is 6445723. The reversal of 6445716 is 6175446.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6445711) 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, 268560 + ... + 268583.

It is an arithmetic number, because the mean of its divisors is an integer number (1253336).

Almost surely, 2^6445716 is an apocalyptic number.

It is an amenable number.

6445716 is an abundant number, since it is smaller than the sum of its proper divisors (8594316).

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

6445716 is a wasteful number, since it uses less digits than its factorization.

6445716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537150 (or 537148 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 6445716 is about 2538.8414680716. The cubic root of 6445716 is about 186.1045775649.

The spelling of 6445716 in words is "six million, four hundred forty-five thousand, seven hundred sixteen".