82183939 has 4 divisors (see below), whose sum is σ = 82260360. Its totient is φ = 82107520.

The previous prime is 82183931. The next prime is 82183951. The reversal of 82183939 is 93938128.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82183939 - 2³ = 82183931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82183895 and 82183904.

It is not an unprimeable number, because it can be changed into a prime (82183931) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 36574 + ... + 38755.

It is an arithmetic number, because the mean of its divisors is an integer number (20565090).

Almost surely, 2^82183939 is an apocalyptic number.

82183939 is a deficient number, since it is larger than the sum of its proper divisors (76421).

82183939 is a wasteful number, since it uses less digits than its factorization.

82183939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76420.

The product of its digits is 93312, while the sum is 43.

The square root of 82183939 is about 9065.5357811880. The cubic root of 82183939 is about 434.7727513436.

The spelling of 82183939 in words is "eighty-two million, one hundred eighty-three thousand, nine hundred thirty-nine".