6722111 has 4 divisors (see below), whose sum is σ = 7333224. Its totient is φ = 6111000.

The previous prime is 6722069. The next prime is 6722117. The reversal of 6722111 is 1112276.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6722111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6722117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305540 + ... + 305561.

It is an arithmetic number, because the mean of its divisors is an integer number (1833306).

Almost surely, 2^6722111 is an apocalyptic number.

6722111 is a deficient number, since it is larger than the sum of its proper divisors (611113).

6722111 is a wasteful number, since it uses less digits than its factorization.

6722111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611112.

The product of its digits is 168, while the sum is 20.

The square root of 6722111 is about 2592.7034153563. The cubic root of 6722111 is about 188.7275171677.

Adding to 6722111 its reverse (1112276), we get a palindrome (7834387).

The spelling of 6722111 in words is "six million, seven hundred twenty-two thousand, one hundred eleven".