6721712 has 40 divisors (see below), whose sum is σ = 13561632. Its totient is φ = 3225600.

The previous prime is 6721711. The next prime is 6721723. The reversal of 6721712 is 2171276.

It is not an unprimeable number, because it can be changed into a prime (6721711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69248 + ... + 69344.

Almost surely, 2^6721712 is an apocalyptic number.

It is an amenable number.

6721712 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

6721712 is a wasteful number, since it uses less digits than its factorization.

6721712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 231 counting only the distinct ones).

The product of its digits is 1176, while the sum is 26.

The square root of 6721712 is about 2592.6264675036. The cubic root of 6721712 is about 188.7237830347.

Adding to 6721712 its reverse (2171276), we get a palindrome (8892988).

The spelling of 6721712 in words is "six million, seven hundred twenty-one thousand, seven hundred twelve".