6722736 has 20 divisors (see below), whose sum is σ = 17367192. Its totient is φ = 2240896.

The previous prime is 6722719. The next prime is 6722741. The reversal of 6722736 is 6372276.

It is a junction number, because it is equal to n+sod(n) for n = 6722697 and 6722706.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69981 + ... + 70076.

Almost surely, 2^6722736 is an apocalyptic number.

It is an amenable number.

6722736 is an abundant number, since it is smaller than the sum of its proper divisors (10644456).

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

6722736 is a wasteful number, since it uses less digits than its factorization.

6722736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140068 (or 140062 counting only the distinct ones).

The product of its digits is 21168, while the sum is 33.

The square root of 6722736 is about 2592.8239431168. The cubic root of 6722736 is about 188.7333660765.

The spelling of 6722736 in words is "six million, seven hundred twenty-two thousand, seven hundred thirty-six".