82399112 has 8 divisors (see below), whose sum is σ = 154498350. Its totient is φ = 41199552.

The previous prime is 82399103. The next prime is 82399117. The reversal of 82399112 is 21199328.

It can be written as a sum of positive squares in only one way, i.e., 52215076 + 30184036 = 7226^2 + 5494^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×82399112² = 13579227316777088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82399117) 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 as a sum of consecutive naturals, namely, 5149937 + ... + 5149952.

Almost surely, 2^82399112 is an apocalyptic number.

It is an amenable number.

82399112 is a deficient number, since it is larger than the sum of its proper divisors (72099238).

82399112 is a wasteful number, since it uses less digits than its factorization.

82399112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10299895 (or 10299891 counting only the distinct ones).

The product of its digits is 7776, while the sum is 35.

The square root of 82399112 is about 9077.3956617523. The cubic root of 82399112 is about 435.1518596053.

The spelling of 82399112 in words is "eighty-two million, three hundred ninety-nine thousand, one hundred twelve".