82116838 has 16 divisors (see below), whose sum is σ = 127768464. Its totient is φ = 39549600.

The previous prime is 82116791. The next prime is 82116857. The reversal of 82116838 is 83861128.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 82116797 and 82116806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1981 + ... + 12967.

It is an arithmetic number, because the mean of its divisors is an integer number (7985529).

Almost surely, 2^82116838 is an apocalyptic number.

82116838 is a deficient number, since it is larger than the sum of its proper divisors (45651626).

82116838 is a wasteful number, since it uses less digits than its factorization.

82116838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11127.

The product of its digits is 18432, while the sum is 37.

The square root of 82116838 is about 9061.8341410556. The cubic root of 82116838 is about 434.6543923301.

The spelling of 82116838 in words is "eighty-two million, one hundred sixteen thousand, eight hundred thirty-eight".