6720022 has 4 divisors (see below), whose sum is σ = 10080036. Its totient is φ = 3360010.

The previous prime is 6720011. The next prime is 6720047. The reversal of 6720022 is 2200276.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1680004 + ... + 1680007.

It is an arithmetic number, because the mean of its divisors is an integer number (2520009).

Almost surely, 2^6720022 is an apocalyptic number.

6720022 is a deficient number, since it is larger than the sum of its proper divisors (3360014).

6720022 is a wasteful number, since it uses less digits than its factorization.

6720022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360013.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 6720022 is about 2592.3005227018. The cubic root of 6720022 is about 188.7079651435.

Adding to 6720022 its reverse (2200276), we get a palindrome (8920298).

The spelling of 6720022 in words is "six million, seven hundred twenty thousand, twenty-two".