73681317 has 12 divisors (see below), whose sum is σ = 108904224. Its totient is φ = 47978280.

The previous prime is 73681303. The next prime is 73681367. The reversal of 73681317 is 71318637.

It is not a de Polignac number, because 73681317 - 2⁶ = 73681253 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73681367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94809 + ... + 95582.

It is an arithmetic number, because the mean of its divisors is an integer number (9075352).

Almost surely, 2^73681317 is an apocalyptic number.

It is an amenable number.

73681317 is a deficient number, since it is larger than the sum of its proper divisors (35222907).

73681317 is a wasteful number, since it uses less digits than its factorization.

73681317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190440 (or 190437 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 73681317 is about 8583.7822083275. The cubic root of 73681317 is about 419.2301031794.

The spelling of 73681317 in words is "seventy-three million, six hundred eighty-one thousand, three hundred seventeen".