82189768 has 16 divisors (see below), whose sum is σ = 154223280. Its totient is φ = 41063568.

The previous prime is 82189721. The next prime is 82189817. The reversal of 82189768 is 86798128.

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 3 ways as a sum of consecutive naturals, for example, 10255 + ... + 16417.

It is an arithmetic number, because the mean of its divisors is an integer number (9638955).

Almost surely, 2^82189768 is an apocalyptic number.

It is an amenable number.

82189768 is a deficient number, since it is larger than the sum of its proper divisors (72033512).

82189768 is a wasteful number, since it uses less digits than its factorization.

82189768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7836 (or 7832 counting only the distinct ones).

The product of its digits is 387072, while the sum is 49.

The square root of 82189768 is about 9065.8572677933. The cubic root of 82189768 is about 434.7830300367.

The spelling of 82189768 in words is "eighty-two million, one hundred eighty-nine thousand, seven hundred sixty-eight".