6722243 has 4 divisors (see below), whose sum is σ = 7333368. Its totient is φ = 6111120.

The previous prime is 6722239. The next prime is 6722263. The reversal of 6722243 is 3422276.

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

It is a cyclic number.

It is not a de Polignac number, because 6722243 - 2² = 6722239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6722263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305546 + ... + 305567.

It is an arithmetic number, because the mean of its divisors is an integer number (1833342).

Almost surely, 2^6722243 is an apocalyptic number.

6722243 is a deficient number, since it is larger than the sum of its proper divisors (611125).

6722243 is a wasteful number, since it uses less digits than its factorization.

6722243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611124.

The product of its digits is 4032, while the sum is 26.

The square root of 6722243 is about 2592.7288712860. The cubic root of 6722243 is about 188.7287524874.

The spelling of 6722243 in words is "six million, seven hundred twenty-two thousand, two hundred forty-three".