6720026 has 4 divisors (see below), whose sum is σ = 10080042. Its totient is φ = 3360012.

The previous prime is 6720011. The next prime is 6720047. The reversal of 6720026 is 6200276.

It is a happy number.

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., 6630625 + 89401 = 2575^2 + 299^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6719983 and 6720010.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1680005 + ... + 1680008.

Almost surely, 2^6720026 is an apocalyptic number.

6720026 is a deficient number, since it is larger than the sum of its proper divisors (3360016).

6720026 is a wasteful number, since it uses less digits than its factorization.

6720026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360015.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 6720026 is about 2592.3012942172. The cubic root of 6720026 is about 188.7080025854.

The spelling of 6720026 in words is "six million, seven hundred twenty thousand, twenty-six".