82239748 has 12 divisors (see below), whose sum is σ = 144114012. Its totient is φ = 41064320.

The previous prime is 82239719. The next prime is 82239749. The reversal of 82239748 is 84793228.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 37724164 + 44515584 = 6142^2 + 6672^2 .

It is a super-2 number, since 2×82239748² = 13526752302207008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82239749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10465 + ... + 16552.

It is an arithmetic number, because the mean of its divisors is an integer number (12009501).

Almost surely, 2^82239748 is an apocalyptic number.

It is an amenable number.

82239748 is a deficient number, since it is larger than the sum of its proper divisors (61874264).

82239748 is a wasteful number, since it uses less digits than its factorization.

82239748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27782 (or 27780 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 82239748 is about 9068.6133449387. The cubic root of 82239748 is about 434.8711434076.

It can be divided in two parts, 8223 and 9748, that added together give a palindrome (17971).

The spelling of 82239748 in words is "eighty-two million, two hundred thirty-nine thousand, seven hundred forty-eight".