827897285 has 4 divisors (see below), whose sum is σ = 993476748. Its totient is φ = 662317824.

The previous prime is 827897269. The next prime is 827897341. The reversal of 827897285 is 582798728.

It is a happy number.

827897285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 536478244 + 291419041 = 23162^2 + 17071^2 .

It is a cyclic number.

It is not a de Polignac number, because 827897285 - 2⁴ = 827897269 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 827897285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82789724 + ... + 82789733.

It is an arithmetic number, because the mean of its divisors is an integer number (248369187).

Almost surely, 2^827897285 is an apocalyptic number.

It is an amenable number.

827897285 is a deficient number, since it is larger than the sum of its proper divisors (165579463).

827897285 is a wasteful number, since it uses less digits than its factorization.

827897285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165579462.

The product of its digits is 4515840, while the sum is 56.

The square root of 827897285 is about 28773.2042880177. The cubic root of 827897285 is about 938.9853564396.

The spelling of 827897285 in words is "eight hundred twenty-seven million, eight hundred ninety-seven thousand, two hundred eighty-five".