917223 has 4 divisors (see below), whose sum is σ = 1222968. Its totient is φ = 611480.

The previous prime is 917219. The next prime is 917227. The reversal of 917223 is 322719.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (917219) and next prime (917227).

It is a cyclic number.

It is not a de Polignac number, because 917223 - 2² = 917219 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 917193 and 917202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (917227) 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, 152868 + ... + 152873.

It is an arithmetic number, because the mean of its divisors is an integer number (305742).

2⁹¹⁷²²³ is an apocalyptic number.

917223 is a deficient number, since it is larger than the sum of its proper divisors (305745).

917223 is a wasteful number, since it uses less digits than its factorization.

917223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305744.

The product of its digits is 756, while the sum is 24.

The square root of 917223 is about 957.7175992953. The cubic root of 917223 is about 97.1609260548.

The spelling of 917223 in words is "nine hundred seventeen thousand, two hundred twenty-three".