81883 has 2 divisors, whose sum is σ = 81884. Its totient is φ = 81882.

The previous prime is 81869. The next prime is 81899. The reversal of 81883 is 38818.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 81883 - 2⁹ = 81371 is a prime.

81883 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (81853) 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, 40941 + 40942.

It is an arithmetic number, because the mean of its divisors is an integer number (40942).

2⁸¹⁸⁸³ is an apocalyptic number.

81883 is a deficient number, since it is larger than the sum of its proper divisors (1).

81883 is an equidigital number, since it uses as much as digits as its factorization.

81883 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 28.

The square root of 81883 is about 286.1520574799. The cubic root of 81883 is about 43.4241422447.

It can be divided in two parts, 8 and 1883, that added together give a triangular number (1891 = T₆₁).

The spelling of 81883 in words is "eighty-one thousand, eight hundred eighty-three".