82381933 has 2 divisors, whose sum is σ = 82381934. Its totient is φ = 82381932.

The previous prime is 82381921. The next prime is 82382059. The reversal of 82381933 is 33918328.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43917129 + 38464804 = 6627^2 + 6202^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82381933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82381892 and 82381901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82384933) 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 as a sum of consecutive naturals, namely, 41190966 + 41190967.

It is an arithmetic number, because the mean of its divisors is an integer number (41190967).

Almost surely, 2^82381933 is an apocalyptic number.

It is an amenable number.

82381933 is a deficient number, since it is larger than the sum of its proper divisors (1).

82381933 is an equidigital number, since it uses as much as digits as its factorization.

82381933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 37.

The square root of 82381933 is about 9076.4493608459. The cubic root of 82381933 is about 435.1216165878.

The spelling of 82381933 in words is "eighty-two million, three hundred eighty-one thousand, nine hundred thirty-three".