82005607 has 4 divisors (see below), whose sum is σ = 82631736. Its totient is φ = 81379480.

The previous prime is 82005529. The next prime is 82005619. The reversal of 82005607 is 70650028.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82005607 is a prime.

It is a super-3 number, since 3×82005607³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82005697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312868 + ... + 313129.

It is an arithmetic number, because the mean of its divisors is an integer number (20657934).

Almost surely, 2^82005607 is an apocalyptic number.

82005607 is a deficient number, since it is larger than the sum of its proper divisors (626129).

82005607 is a wasteful number, since it uses less digits than its factorization.

82005607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626128.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 82005607 is about 9055.6947276286. The cubic root of 82005607 is about 434.4580505901.

The spelling of 82005607 in words is "eighty-two million, five thousand, six hundred seven".