827288985 has 16 divisors (see below), whose sum is σ = 1332432000. Its totient is φ = 438297600.

The previous prime is 827288983. The next prime is 827288989. The reversal of 827288985 is 589882728.

It is not a de Polignac number, because 827288985 - 2¹ = 827288983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (827288981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180360 + ... + 184889.

It is an arithmetic number, because the mean of its divisors is an integer number (83277000).

Almost surely, 2^827288985 is an apocalyptic number.

It is an amenable number.

827288985 is a deficient number, since it is larger than the sum of its proper divisors (505143015).

827288985 is a wasteful number, since it uses less digits than its factorization.

827288985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365408.

The product of its digits is 5160960, while the sum is 57.

The square root of 827288985 is about 28762.6317467648. The cubic root of 827288985 is about 938.7553259946.

The spelling of 827288985 in words is "eight hundred twenty-seven million, two hundred eighty-eight thousand, nine hundred eighty-five".