73315216 has 40 divisors (see below), whose sum is σ = 156724344. Its totient is φ = 33008640.

The previous prime is 73315213. The next prime is 73315267. The reversal of 73315216 is 61251337.

It can be written as a sum of positive squares in 4 ways, for example, as 41616 + 73273600 = 204^2 + 8560^2 .

It is not an unprimeable number, because it can be changed into a prime (73315213) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 4230 + ... + 12826.

Almost surely, 2^73315216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73315216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78362172).

73315216 is an abundant number, since it is smaller than the sum of its proper divisors (83409128).

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

73315216 is a wasteful number, since it uses less digits than its factorization.

73315216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8659 (or 8653 counting only the distinct ones).

The product of its digits is 3780, while the sum is 28.

The square root of 73315216 is about 8562.4304960683. The cubic root of 73315216 is about 418.5346059111.

The spelling of 73315216 in words is "seventy-three million, three hundred fifteen thousand, two hundred sixteen".