73473216 has 56 divisors (see below), whose sum is σ = 195285360. Its totient is φ = 24379392.

The previous prime is 73473199. The next prime is 73473217. The reversal of 73473216 is 61237437.

It is not an unprimeable number, because it can be changed into a prime (73473217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48600 + ... + 50088.

Almost surely, 2^73473216 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 73473216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97642680).

73473216 is an abundant number, since it is smaller than the sum of its proper divisors (121812144).

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

73473216 is a wasteful number, since it uses less digits than its factorization.

73473216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761 (or 1751 counting only the distinct ones).

The product of its digits is 21168, while the sum is 33.

The square root of 73473216 is about 8571.6518828053. The cubic root of 73473216 is about 418.8350484119.

The spelling of 73473216 in words is "seventy-three million, four hundred seventy-three thousand, two hundred sixteen".