73215996 has 72 divisors (see below), whose sum is σ = 203643216. Its totient is φ = 20401920.

The previous prime is 73215983. The next prime is 73215997. The reversal of 73215996 is 69951237.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73215997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22590 + ... + 25626.

It is an arithmetic number, because the mean of its divisors is an integer number (2828378).

Almost surely, 2^73215996 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 73215996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101821608).

73215996 is an abundant number, since it is smaller than the sum of its proper divisors (130427220).

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

73215996 is a wasteful number, since it uses less digits than its factorization.

73215996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3099 (or 3090 counting only the distinct ones).

The product of its digits is 102060, while the sum is 42.

The square root of 73215996 is about 8556.6346188206. The cubic root of 73215996 is about 418.3457149220.

The spelling of 73215996 in words is "seventy-three million, two hundred fifteen thousand, nine hundred ninety-six".