82239782 has 16 divisors (see below), whose sum is σ = 126317232. Its totient is φ = 40141920.

The previous prime is 82239769. The next prime is 82239791. The reversal of 82239782 is 28793228.

It is a congruent number.

It is an unprimeable number.

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, 20528 + ... + 24204.

It is an arithmetic number, because the mean of its divisors is an integer number (7894827).

Almost surely, 2^82239782 is an apocalyptic number.

82239782 is a deficient number, since it is larger than the sum of its proper divisors (44077450).

82239782 is a wasteful number, since it uses less digits than its factorization.

82239782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3943.

The product of its digits is 96768, while the sum is 41.

The square root of 82239782 is about 9068.6152195360. The cubic root of 82239782 is about 434.8712033365.

It can be divided in two parts, 822 and 39782, that added together give a palindrome (40604).

The spelling of 82239782 in words is "eighty-two million, two hundred thirty-nine thousand, seven hundred eighty-two".