7913223 has 6 divisors (see below), whose sum is σ = 11430224. Its totient is φ = 5275476.

The previous prime is 7913209. The next prime is 7913231. The reversal of 7913223 is 3223197.

It is not a de Polignac number, because 7913223 - 2⁶ = 7913159 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 (7913203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 439615 + ... + 439632.

Almost surely, 2^7913223 is an apocalyptic number.

7913223 is a deficient number, since it is larger than the sum of its proper divisors (3517001).

7913223 is a wasteful number, since it uses less digits than its factorization.

7913223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879253 (or 879250 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 7913223 is about 2813.0451471670. The cubic root of 7913223 is about 199.2742277927.

The spelling of 7913223 in words is "seven million, nine hundred thirteen thousand, two hundred twenty-three".