7217968 has 20 divisors (see below), whose sum is σ = 14327208. Its totient is φ = 3520640.

The previous prime is 7217963. The next prime is 7218019. The reversal of 7217968 is 8697127.

It is a self number, because there is not a number n which added to its sum of digits gives 7217968.

It is not an unprimeable number, because it can be changed into a prime (7217963) 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, 4846 + ... + 6157.

Almost surely, 2^7217968 is an apocalyptic number.

It is an amenable number.

7217968 is a deficient number, since it is larger than the sum of its proper divisors (7109240).

7217968 is a wasteful number, since it uses less digits than its factorization.

7217968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11052 (or 11046 counting only the distinct ones).

The product of its digits is 42336, while the sum is 40.

The square root of 7217968 is about 2686.6276258536. The cubic root of 7217968 is about 193.2583723132.

The spelling of 7217968 in words is "seven million, two hundred seventeen thousand, nine hundred sixty-eight".