82806285 has 16 divisors (see below), whose sum is σ = 132612480. Its totient is φ = 44122560.

The previous prime is 82806257. The next prime is 82806289. The reversal of 82806285 is 58260828.

It is not a de Polignac number, because 82806285 - 2⁵ = 82806253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82806289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21615 + ... + 25155.

It is an arithmetic number, because the mean of its divisors is an integer number (8288280).

Almost surely, 2^82806285 is an apocalyptic number.

It is an amenable number.

82806285 is a deficient number, since it is larger than the sum of its proper divisors (49806195).

82806285 is a wasteful number, since it uses less digits than its factorization.

82806285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5108.

The product of its (nonzero) digits is 61440, while the sum is 39.

The square root of 82806285 is about 9099.7958768315. The cubic root of 82806285 is about 435.8674459572.

The spelling of 82806285 in words is "eighty-two million, eight hundred six thousand, two hundred eighty-five".