82119838 has 8 divisors (see below), whose sum is σ = 123482160. Its totient is φ = 40959120.

The previous prime is 82119833. The next prime is 82119841. The reversal of 82119838 is 83891128.

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

It is a self number, because there is not a number n which added to its sum of digits gives 82119838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82119833) 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 in 3 ways as a sum of consecutive naturals, for example, 49378 + ... + 51013.

It is an arithmetic number, because the mean of its divisors is an integer number (15435270).

Almost surely, 2^82119838 is an apocalyptic number.

82119838 is a deficient number, since it is larger than the sum of its proper divisors (41362322).

82119838 is a wasteful number, since it uses less digits than its factorization.

82119838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100802.

The product of its digits is 27648, while the sum is 40.

The square root of 82119838 is about 9061.9996689472. Note that the first 3 decimals coincide. The cubic root of 82119838 is about 434.6596853871.

The spelling of 82119838 in words is "eighty-two million, one hundred nineteen thousand, eight hundred thirty-eight".