9221697 has 6 divisors (see below), whose sum is σ = 13320242. Its totient is φ = 6147792.

The previous prime is 9221687. The next prime is 9221711. The reversal of 9221697 is 7961229.

It can be written as a sum of positive squares in only one way, i.e., 5157441 + 4064256 = 2271^2 + 2016^2 .

It is not a de Polignac number, because 9221697 - 2¹⁵ = 9188929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9221617) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 512308 + ... + 512325.

Almost surely, 2^9221697 is an apocalyptic number.

It is an amenable number.

9221697 is a deficient number, since it is larger than the sum of its proper divisors (4098545).

9221697 is a wasteful number, since it uses less digits than its factorization.

9221697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024639 (or 1024636 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 9221697 is about 3036.7247158740. The cubic root of 9221697 is about 209.7025039219.

The spelling of 9221697 in words is "nine million, two hundred twenty-one thousand, six hundred ninety-seven".