73242317 has 4 divisors (see below), whose sum is σ = 73261980. Its totient is φ = 73222656.

The previous prime is 73242311. The next prime is 73242349. The reversal of 73242317 is 71324237.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71324237 = 1289 ⋅55333.

It can be written as a sum of positive squares in 2 ways, for example, as 36348841 + 36893476 = 6029^2 + 6074^2 .

It is a cyclic number.

It is not a de Polignac number, because 73242317 - 2⁸ = 73242061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73242317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73242311) 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, 2342 + ... + 12327.

It is an arithmetic number, because the mean of its divisors is an integer number (18315495).

Almost surely, 2^73242317 is an apocalyptic number.

It is an amenable number.

73242317 is a deficient number, since it is larger than the sum of its proper divisors (19663).

73242317 is a wasteful number, since it uses less digits than its factorization.

73242317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19662.

The product of its digits is 7056, while the sum is 29.

The square root of 73242317 is about 8558.1725268891. The cubic root of 73242317 is about 418.3958403906.

The spelling of 73242317 in words is "seventy-three million, two hundred forty-two thousand, three hundred seventeen".