82641243 has 8 divisors (see below), whose sum is σ = 110918656. Its totient is φ = 54729000.

The previous prime is 82641193. The next prime is 82641253. The reversal of 82641243 is 34214628.

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

It is not a de Polignac number, because 82641243 - 2¹² = 82637147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82641243.

It is not an unprimeable number, because it can be changed into a prime (82641253) 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 7 ways as a sum of consecutive naturals, for example, 90763 + ... + 91668.

It is an arithmetic number, because the mean of its divisors is an integer number (13864832).

Almost surely, 2^82641243 is an apocalyptic number.

82641243 is a deficient number, since it is larger than the sum of its proper divisors (28277413).

82641243 is a wasteful number, since it uses less digits than its factorization.

82641243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182585.

The product of its digits is 9216, while the sum is 30.

The square root of 82641243 is about 9090.7229085480. The cubic root of 82641243 is about 435.5776761633.

The spelling of 82641243 in words is "eighty-two million, six hundred forty-one thousand, two hundred forty-three".