73213216 has 24 divisors (see below), whose sum is σ = 147208320. Its totient is φ = 35827008.

The previous prime is 73213187. The next prime is 73213223. The reversal of 73213216 is 61231237.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22836 + ... + 25843.

It is an arithmetic number, because the mean of its divisors is an integer number (6133680).

Almost surely, 2^73213216 is an apocalyptic number.

It is an amenable number.

73213216 is an abundant number, since it is smaller than the sum of its proper divisors (73995104).

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

73213216 is a wasteful number, since it uses less digits than its factorization.

73213216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48736 (or 48728 counting only the distinct ones).

The product of its digits is 1512, while the sum is 25.

The square root of 73213216 is about 8556.4721702346. The cubic root of 73213216 is about 418.3404200144.

The spelling of 73213216 in words is "seventy-three million, two hundred thirteen thousand, two hundred sixteen".