82685838 has 8 divisors (see below), whose sum is σ = 165371688. Its totient is φ = 27561944.

The previous prime is 82685833. The next prime is 82685849. The reversal of 82685838 is 83858628.

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

82685838 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82685833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6890481 + ... + 6890492.

It is an arithmetic number, because the mean of its divisors is an integer number (20671461).

Almost surely, 2^82685838 is an apocalyptic number.

82685838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82685838 is a wasteful number, since it uses less digits than its factorization.

82685838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13780978.

The product of its digits is 737280, while the sum is 48.

The square root of 82685838 is about 9093.1753529776. The cubic root of 82685838 is about 435.6560111158.

The spelling of 82685838 in words is "eighty-two million, six hundred eighty-five thousand, eight hundred thirty-eight".