7222699 has 4 divisors (see below), whose sum is σ = 7879320. Its totient is φ = 6566080.

The previous prime is 7222687. The next prime is 7222723. The reversal of 7222699 is 9962227.

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 7222699 - 2⁷ = 7222571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7222609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328294 + ... + 328315.

It is an arithmetic number, because the mean of its divisors is an integer number (1969830).

Almost surely, 2^7222699 is an apocalyptic number.

7222699 is a deficient number, since it is larger than the sum of its proper divisors (656621).

7222699 is a wasteful number, since it uses less digits than its factorization.

7222699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656620.

The product of its digits is 27216, while the sum is 37.

The square root of 7222699 is about 2687.5079534766. The cubic root of 7222699 is about 193.3005866720.

It can be divided in two parts, 7222 and 699, that added together give a square (7921 = 89²).

The spelling of 7222699 in words is "seven million, two hundred twenty-two thousand, six hundred ninety-nine".