82000005 has 8 divisors (see below), whose sum is σ = 131200032. Its totient is φ = 43733328.

The previous prime is 81999997. The next prime is 82000031. The reversal of 82000005 is 50000028.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82000005 - 2³ = 81999997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 5466667 = 82000005 / (8 + 2 + 0 + 0 + 0 + 0 + 0 + 5).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2733319 + ... + 2733348.

It is an arithmetic number, because the mean of its divisors is an integer number (16400004).

Almost surely, 2^82000005 is an apocalyptic number.

It is an amenable number.

82000005 is a deficient number, since it is larger than the sum of its proper divisors (49200027).

82000005 is a wasteful number, since it uses less digits than its factorization.

82000005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5466675.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 82000005 is about 9055.3854142162. The cubic root of 82000005 is about 434.4481574071.

The spelling of 82000005 in words is "eighty-two million, five", and thus it is an aban number and an uban number.