7222197 has 4 divisors (see below), whose sum is σ = 9629600. Its totient is φ = 4814796.

The previous prime is 7222183. The next prime is 7222199. The reversal of 7222197 is 7912227.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 7222197 - 2⁴ = 7222181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222199) 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, 1203697 + ... + 1203702.

It is an arithmetic number, because the mean of its divisors is an integer number (2407400).

Almost surely, 2^7222197 is an apocalyptic number.

It is an amenable number.

7222197 is a deficient number, since it is larger than the sum of its proper divisors (2407403).

7222197 is a wasteful number, since it uses less digits than its factorization.

7222197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407402.

The product of its digits is 3528, while the sum is 30.

The square root of 7222197 is about 2687.4145567813. The cubic root of 7222197 is about 193.2961082379.

Adding to 7222197 its sum of digits (30), we get a palindrome (7222227).

The spelling of 7222197 in words is "seven million, two hundred twenty-two thousand, one hundred ninety-seven".