73681343 has 8 divisors (see below), whose sum is σ = 74508720. Its totient is φ = 72858240.

The previous prime is 73681303. The next prime is 73681367. The reversal of 73681343 is 34318637.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73681343 - 2¹⁰ = 73680319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73681303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43313 + ... + 44981.

It is an arithmetic number, because the mean of its divisors is an integer number (9313590).

Almost surely, 2^73681343 is an apocalyptic number.

73681343 is a deficient number, since it is larger than the sum of its proper divisors (827377).

73681343 is a wasteful number, since it uses less digits than its factorization.

73681343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2137.

The product of its digits is 36288, while the sum is 35.

The square root of 73681343 is about 8583.7837228113. The cubic root of 73681343 is about 419.2301524908.

The spelling of 73681343 in words is "seventy-three million, six hundred eighty-one thousand, three hundred forty-three".