7217273 has 8 divisors (see below), whose sum is σ = 8424192. Its totient is φ = 6054336.

The previous prime is 7217267. The next prime is 7217279. The reversal of 7217273 is 3727127.

It is an interprime number because it is at equal distance from previous prime (7217267) and next prime (7217279).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7217273 - 2¹² = 7213177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7217279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10640 + ... + 11297.

It is an arithmetic number, because the mean of its divisors is an integer number (1053024).

Almost surely, 2^7217273 is an apocalyptic number.

It is an amenable number.

7217273 is a deficient number, since it is larger than the sum of its proper divisors (1206919).

7217273 is a wasteful number, since it uses less digits than its factorization.

7217273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21991.

The product of its digits is 4116, while the sum is 29.

The square root of 7217273 is about 2686.4982784286. The cubic root of 7217273 is about 193.2521693264.

The spelling of 7217273 in words is "seven million, two hundred seventeen thousand, two hundred seventy-three".