7222643 has 2 divisors, whose sum is σ = 7222644. Its totient is φ = 7222642.

The previous prime is 7222627. The next prime is 7222661. The reversal of 7222643 is 3462227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7222643 - 2⁴ = 7222627 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7222613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3611321 + 3611322.

It is an arithmetic number, because the mean of its divisors is an integer number (3611322).

Almost surely, 2^7222643 is an apocalyptic number.

7222643 is a deficient number, since it is larger than the sum of its proper divisors (1).

7222643 is an equidigital number, since it uses as much as digits as its factorization.

7222643 is an evil number, because the sum of its binary digits is even.

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

The square root of 7222643 is about 2687.4975348826. The cubic root of 7222643 is about 193.3000870960.

The spelling of 7222643 in words is "seven million, two hundred twenty-two thousand, six hundred forty-three".