73112217 has 4 divisors (see below), whose sum is σ = 97482960. Its totient is φ = 48741476.

The previous prime is 73112191. The next prime is 73112227. The reversal of 73112217 is 71221137.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73112217 - 2⁷ = 73112089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73112227) 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, 12185367 + ... + 12185372.

It is an arithmetic number, because the mean of its divisors is an integer number (24370740).

Almost surely, 2^73112217 is an apocalyptic number.

It is an amenable number.

73112217 is a deficient number, since it is larger than the sum of its proper divisors (24370743).

73112217 is a wasteful number, since it uses less digits than its factorization.

73112217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24370742.

The product of its digits is 588, while the sum is 24.

The square root of 73112217 is about 8550.5682267321. The cubic root of 73112217 is about 418.1479620110.

The spelling of 73112217 in words is "seventy-three million, one hundred twelve thousand, two hundred seventeen".