82004243 has 4 divisors (see below), whose sum is σ = 86828040. Its totient is φ = 77180448.

The previous prime is 82004233. The next prime is 82004267. The reversal of 82004243 is 34240028.

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 82004243 - 2⁶ = 82004179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82004203) 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, 2411873 + ... + 2411906.

It is an arithmetic number, because the mean of its divisors is an integer number (21707010).

Almost surely, 2^82004243 is an apocalyptic number.

82004243 is a deficient number, since it is larger than the sum of its proper divisors (4823797).

82004243 is a wasteful number, since it uses less digits than its factorization.

82004243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4823796.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 82004243 is about 9055.6194155894. The cubic root of 82004243 is about 434.4556417952.

The spelling of 82004243 in words is "eighty-two million, four thousand, two hundred forty-three".