7217973 has 12 divisors (see below), whose sum is σ = 11915488. Its totient is φ = 4124520.

The previous prime is 7217963. The next prime is 7218019. The reversal of 7217973 is 3797127.

7217973 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 7217973 - 2⁵ = 7217941 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 (7217953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57223 + ... + 57348.

Almost surely, 2^7217973 is an apocalyptic number.

It is an amenable number.

7217973 is a deficient number, since it is larger than the sum of its proper divisors (4697515).

7217973 is a wasteful number, since it uses less digits than its factorization.

7217973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114584 (or 114581 counting only the distinct ones).

The product of its digits is 18522, while the sum is 36.

The square root of 7217973 is about 2686.6285563881. The cubic root of 7217973 is about 193.2584169376.

The spelling of 7217973 in words is "seven million, two hundred seventeen thousand, nine hundred seventy-three".