7331216 has 20 divisors (see below), whose sum is σ = 15040332. Its totient is φ = 3449856.

The previous prime is 7331213. The next prime is 7331237. The reversal of 7331216 is 6121337.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5382400 + 1948816 = 2320^2 + 1396^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7331191 and 7331200.

It is not an unprimeable number, because it can be changed into a prime (7331213) 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, 13205 + ... + 13748.

Almost surely, 2^7331216 is an apocalyptic number.

It is an amenable number.

7331216 is an abundant number, since it is smaller than the sum of its proper divisors (7709116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7331216 is a wasteful number, since it uses less digits than its factorization.

7331216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26978 (or 26972 counting only the distinct ones).

The product of its digits is 756, while the sum is 23.

The square root of 7331216 is about 2707.6218347472. The cubic root of 7331216 is about 194.2638560843.

The spelling of 7331216 in words is "seven million, three hundred thirty-one thousand, two hundred sixteen".