7164223 has 4 divisors (see below), whose sum is σ = 7815528. Its totient is φ = 6512920.

The previous prime is 7164203. The next prime is 7164239. The reversal of 7164223 is 3224617.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3224617 = 11 ⋅293147.

It is a cyclic number.

It is not a de Polignac number, because 7164223 - 2⁹ = 7163711 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 (7164203) 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, 325636 + ... + 325657.

It is an arithmetic number, because the mean of its divisors is an integer number (1953882).

Almost surely, 2^7164223 is an apocalyptic number.

7164223 is a deficient number, since it is larger than the sum of its proper divisors (651305).

7164223 is a wasteful number, since it uses less digits than its factorization.

7164223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651304.

The product of its digits is 2016, while the sum is 25.

The square root of 7164223 is about 2676.6066203310. The cubic root of 7164223 is about 192.7775094574. Note that the first 3 decimals are identical.

The spelling of 7164223 in words is "seven million, one hundred sixty-four thousand, two hundred twenty-three".