73840343 has 4 divisors (see below), whose sum is σ = 74211600. Its totient is φ = 73469088.

The previous prime is 73840339. The next prime is 73840381. The reversal of 73840343 is 34304837.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73840343 - 2² = 73840339 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 (73800343) 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, 185330 + ... + 185727.

It is an arithmetic number, because the mean of its divisors is an integer number (18552900).

Almost surely, 2^73840343 is an apocalyptic number.

73840343 is a deficient number, since it is larger than the sum of its proper divisors (371257).

73840343 is a wasteful number, since it uses less digits than its factorization.

73840343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371256.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 73840343 is about 8593.0403816112. The cubic root of 73840343 is about 419.5314938309.

The spelling of 73840343 in words is "seventy-three million, eight hundred forty thousand, three hundred forty-three".