7222689 has 12 divisors (see below), whose sum is σ = 10819536. Its totient is φ = 4814964.

The previous prime is 7222687. The next prime is 7222723. The reversal of 7222689 is 9862227.

It is not a de Polignac number, because 7222689 - 2¹ = 7222687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7222687) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14619 + ... + 15104.

It is an arithmetic number, because the mean of its divisors is an integer number (901628).

Almost surely, 2^7222689 is an apocalyptic number.

It is an amenable number.

7222689 is a deficient number, since it is larger than the sum of its proper divisors (3596847).

7222689 is an equidigital number, since it uses as much as digits as its factorization.

7222689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29738 (or 29726 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 7222689 is about 2687.5060930163. The cubic root of 7222689 is about 193.3004974622.

The spelling of 7222689 in words is "seven million, two hundred twenty-two thousand, six hundred eighty-nine".