82039005 has 24 divisors (see below), whose sum is σ = 142424568. Its totient is φ = 43685376.

The previous prime is 82038997. The next prime is 82039033. The reversal of 82039005 is 50093028.

It can be written as a sum of positive squares in 4 ways, for example, as 18071001 + 63968004 = 4251^2 + 7998^2 .

It is not a de Polignac number, because 82039005 - 2³ = 82038997 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 82039005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41929 + ... + 43841.

It is an arithmetic number, because the mean of its divisors is an integer number (5934357).

Almost surely, 2^82039005 is an apocalyptic number.

It is an amenable number.

82039005 is a deficient number, since it is larger than the sum of its proper divisors (60385563).

82039005 is a wasteful number, since it uses less digits than its factorization.

82039005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2877 (or 2874 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 82039005 is about 9057.5385729237. The cubic root of 82039005 is about 434.5170224138.

The spelling of 82039005 in words is "eighty-two million, thirty-nine thousand, five".