6722746 has 4 divisors (see below), whose sum is σ = 10084122. Its totient is φ = 3361372.

The previous prime is 6722743. The next prime is 6722747. The reversal of 6722746 is 6472276.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6558721 + 164025 = 2561^2 + 405^2 .

It is not an unprimeable number, because it can be changed into a prime (6722741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1680685 + ... + 1680688.

Almost surely, 2^6722746 is an apocalyptic number.

6722746 is a deficient number, since it is larger than the sum of its proper divisors (3361376).

6722746 is a wasteful number, since it uses less digits than its factorization.

6722746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3361375.

The product of its digits is 28224, while the sum is 34.

The square root of 6722746 is about 2592.8258715155. The cubic root of 6722746 is about 188.7334596561.

The spelling of 6722746 in words is "six million, seven hundred twenty-two thousand, seven hundred forty-six".