82940243 has 4 divisors (see below), whose sum is σ = 82958568. Its totient is φ = 82921920.

The previous prime is 82940239. The next prime is 82940251. The reversal of 82940243 is 34204928.

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 82940243 - 2² = 82940239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82940213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3080 + ... + 13242.

It is an arithmetic number, because the mean of its divisors is an integer number (20739642).

Almost surely, 2^82940243 is an apocalyptic number.

82940243 is a deficient number, since it is larger than the sum of its proper divisors (18325).

82940243 is a wasteful number, since it uses less digits than its factorization.

82940243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18324.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 82940243 is about 9107.1533971928. The cubic root of 82940243 is about 436.1023575718.

The spelling of 82940243 in words is "eighty-two million, nine hundred forty thousand, two hundred forty-three".