73172396 has 12 divisors (see below), whose sum is σ = 139692840. Its totient is φ = 33260160.

The previous prime is 73172389. The next prime is 73172399. The reversal of 73172396 is 69327137.

It is not an unprimeable number, because it can be changed into a prime (73172399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831461 + ... + 831548.

It is an arithmetic number, because the mean of its divisors is an integer number (11641070).

Almost surely, 2^73172396 is an apocalyptic number.

It is an amenable number.

73172396 is a deficient number, since it is larger than the sum of its proper divisors (66520444).

73172396 is a wasteful number, since it uses less digits than its factorization.

73172396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1663024 (or 1663022 counting only the distinct ones).

The product of its digits is 47628, while the sum is 38.

The square root of 73172396 is about 8554.0865087980. The cubic root of 73172396 is about 418.2626570477.

The spelling of 73172396 in words is "seventy-three million, one hundred seventy-two thousand, three hundred ninety-six".