7171223 has 2 divisors, whose sum is σ = 7171224. Its totient is φ = 7171222.

The previous prime is 7171217. The next prime is 7171237. The reversal of 7171223 is 3221717.

It is a weak prime.

It is an emirp because it is prime and its reverse (3221717) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7171223 - 2⁶ = 7171159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7161223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3585611 + 3585612.

It is an arithmetic number, because the mean of its divisors is an integer number (3585612).

Almost surely, 2^7171223 is an apocalyptic number.

7171223 is a deficient number, since it is larger than the sum of its proper divisors (1).

7171223 is an equidigital number, since it uses as much as digits as its factorization.

7171223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 588, while the sum is 23.

The square root of 7171223 is about 2677.9139269215. The cubic root of 7171223 is about 192.8402751986.

The spelling of 7171223 in words is "seven million, one hundred seventy-one thousand, two hundred twenty-three".