73891216 has 45 divisors (see below), whose sum is σ = 167082219. Its totient is φ = 31564512.

The previous prime is 73891199. The next prime is 73891229. The reversal of 73891216 is 61219837.

The square root of 73891216 is 8596.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 240535 + ... + 240841.

Almost surely, 2^73891216 is an apocalyptic number.

73891216 is the 8596-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73891216

73891216 is an abundant number, since it is smaller than the sum of its proper divisors (93191003).

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

73891216 is an equidigital number, since it uses as much as digits as its factorization.

73891216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636 (or 316 counting only the distinct ones).

The product of its digits is 18144, while the sum is 37.

The cubic root of 73891216 is about 419.6278184382.

The spelling of 73891216 in words is "seventy-three million, eight hundred ninety-one thousand, two hundred sixteen".