6724456 has 8 divisors (see below), whose sum is σ = 12608370. Its totient is φ = 3362224.

The previous prime is 6724453. The next prime is 6724463. The reversal of 6724456 is 6544276.

It can be written as a sum of positive squares in only one way, i.e., 5447556 + 1276900 = 2334^2 + 1130^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (6724453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420271 + ... + 420286.

Almost surely, 2^6724456 is an apocalyptic number.

It is an amenable number.

6724456 is a deficient number, since it is larger than the sum of its proper divisors (5883914).

6724456 is a wasteful number, since it uses less digits than its factorization.

6724456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840563 (or 840559 counting only the distinct ones).

The product of its digits is 40320, while the sum is 34.

The square root of 6724456 is about 2593.1556065921. The cubic root of 6724456 is about 188.7494604022.

The spelling of 6724456 in words is "six million, seven hundred twenty-four thousand, four hundred fifty-six".