7223197 has 2 divisors, whose sum is σ = 7223198. Its totient is φ = 7223196.

The previous prime is 7223191. The next prime is 7223201. The reversal of 7223197 is 7913227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4618201 + 2604996 = 2149^2 + 1614^2 .

It is a cyclic number.

It is not a de Polignac number, because 7223197 - 2³ = 7223189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7223191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3611598 + 3611599.

It is an arithmetic number, because the mean of its divisors is an integer number (3611599).

Almost surely, 2^7223197 is an apocalyptic number.

It is an amenable number.

7223197 is a deficient number, since it is larger than the sum of its proper divisors (1).

7223197 is an equidigital number, since it uses as much as digits as its factorization.

7223197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5292, while the sum is 31.

The square root of 7223197 is about 2687.6006027682. The cubic root of 7223197 is about 193.3050292162.

The spelling of 7223197 in words is "seven million, two hundred twenty-three thousand, one hundred ninety-seven".