73163736 has 80 divisors (see below), whose sum is σ = 213879600. Its totient is φ = 23322816.

The previous prime is 73163731. The next prime is 73163777. The reversal of 73163736 is 63736137.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 73163736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73163731) 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 19 ways as a sum of consecutive naturals, for example, 12450 + ... + 17358.

It is an arithmetic number, because the mean of its divisors is an integer number (2673495).

Almost surely, 2^73163736 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 73163736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106939800).

73163736 is an abundant number, since it is smaller than the sum of its proper divisors (140715864).

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

73163736 is a wasteful number, since it uses less digits than its factorization.

73163736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4950 (or 4937 counting only the distinct ones).

The product of its digits is 47628, while the sum is 36.

The square root of 73163736 is about 8553.5803030076. The cubic root of 73163736 is about 418.2461558455.

The spelling of 73163736 in words is "seventy-three million, one hundred sixty-three thousand, seven hundred thirty-six".