7312216 has 8 divisors (see below), whose sum is σ = 13710420. Its totient is φ = 3656104.

The previous prime is 7312177. The next prime is 7312231. The reversal of 7312216 is 6122137.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 457006 + ... + 457021.

Almost surely, 2^7312216 is an apocalyptic number.

It is an amenable number.

7312216 is a deficient number, since it is larger than the sum of its proper divisors (6398204).

7312216 is a wasteful number, since it uses less digits than its factorization.

7312216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914033 (or 914029 counting only the distinct ones).

The product of its digits is 504, while the sum is 22.

The square root of 7312216 is about 2704.1109444695. The cubic root of 7312216 is about 194.0958891114.

The spelling of 7312216 in words is "seven million, three hundred twelve thousand, two hundred sixteen".