6722223 has 4 divisors (see below), whose sum is σ = 8962968. Its totient is φ = 4481480.

The previous prime is 6722207. The next prime is 6722239. The reversal of 6722223 is 3222276.

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

It is an interprime number because it is at equal distance from previous prime (6722207) and next prime (6722239).

It is a cyclic number.

It is not a de Polignac number, because 6722223 - 2⁴ = 6722207 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 6722193 and 6722202.

It is a congruent 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1120368 + ... + 1120373.

It is an arithmetic number, because the mean of its divisors is an integer number (2240742).

Almost surely, 2^6722223 is an apocalyptic number.

6722223 is a deficient number, since it is larger than the sum of its proper divisors (2240745).

6722223 is a wasteful number, since it uses less digits than its factorization.

6722223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240744.

The product of its digits is 2016, while the sum is 24.

The square root of 6722223 is about 2592.7250143430. The cubic root of 6722223 is about 188.7285653188.

Adding to 6722223 its reverse (3222276), we get a palindrome (9944499).

It can be divided in two parts, 672 and 2223, that multiplied together give a triangular number (1493856 = T₁₇₂₈).

The spelling of 6722223 in words is "six million, seven hundred twenty-two thousand, two hundred twenty-three".