9222709 has 2 divisors, whose sum is σ = 9222710. Its totient is φ = 9222708.

The previous prime is 9222691. The next prime is 9222713. The reversal of 9222709 is 9072229.

9222709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7128900 + 2093809 = 2670^2 + 1447^2 .

It is an emirp because it is prime and its reverse (9072229) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9222709 - 2⁹ = 9222197 is a prime.

It is a super-2 number, since 2×9222709² = 170116722597362, which contains 22 as substring.

9222709 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9222739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4611354 + 4611355.

It is an arithmetic number, because the mean of its divisors is an integer number (4611355).

Almost surely, 2^9222709 is an apocalyptic number.

It is an amenable number.

9222709 is a deficient number, since it is larger than the sum of its proper divisors (1).

9222709 is an equidigital number, since it uses as much as digits as its factorization.

9222709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 9222709 is about 3036.8913381944. The cubic root of 9222709 is about 209.7101746420.

It can be divided in two parts, 92 and 22709, that added together give a square (22801 = 151²).

The spelling of 9222709 in words is "nine million, two hundred twenty-two thousand, seven hundred nine".