7997223 has 24 divisors (see below), whose sum is σ = 11864272. Its totient is φ = 4762368.

The previous prime is 7997219. The next prime is 7997237. The reversal of 7997223 is 3227997.

7997223 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7997223 - 2² = 7997219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7997203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109515 + ... + 109587.

Almost surely, 2^7997223 is an apocalyptic number.

7997223 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

7997223 is a deficient number, since it is larger than the sum of its proper divisors (3867049).

7997223 is a wasteful number, since it uses less digits than its factorization.

7997223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 142 counting only the distinct ones).

The product of its digits is 47628, while the sum is 39.

The square root of 7997223 is about 2827.9361732543. The cubic root of 7997223 is about 199.9768556551.

The spelling of 7997223 in words is "seven million, nine hundred ninety-seven thousand, two hundred twenty-three".