82665838 has 8 divisors (see below), whose sum is σ = 124789032. Its totient is φ = 41069496.

The previous prime is 82665829. The next prime is 82665859. The reversal of 82665838 is 83856628.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131320 + ... + 131947.

It is an arithmetic number, because the mean of its divisors is an integer number (15598629).

Almost surely, 2^82665838 is an apocalyptic number.

82665838 is a deficient number, since it is larger than the sum of its proper divisors (42123194).

82665838 is a wasteful number, since it uses less digits than its factorization.

82665838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263426.

The product of its digits is 552960, while the sum is 46.

The square root of 82665838 is about 9092.0755606187. The cubic root of 82665838 is about 435.6208828801.

The spelling of 82665838 in words is "eighty-two million, six hundred sixty-five thousand, eight hundred thirty-eight".