7287216 has 20 divisors (see below), whose sum is σ = 18825432. Its totient is φ = 2429056.

The previous prime is 7287211. The next prime is 7287229. The reversal of 7287216 is 6127827.

It is not an unprimeable number, because it can be changed into a prime (7287211) 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, 75861 + ... + 75956.

Almost surely, 2^7287216 is an apocalyptic number.

It is an amenable number.

7287216 is an abundant number, since it is smaller than the sum of its proper divisors (11538216).

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

7287216 is a wasteful number, since it uses less digits than its factorization.

7287216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151828 (or 151822 counting only the distinct ones).

The product of its digits is 9408, while the sum is 33.

The square root of 7287216 is about 2699.4843952133. The cubic root of 7287216 is about 193.8744360540.

It can be divided in two parts, 7287 and 216, that added together give a triangular number (7503 = T₁₂₂).

The spelling of 7287216 in words is "seven million, two hundred eighty-seven thousand, two hundred sixteen".