827982861 has 8 divisors (see below), whose sum is σ = 1105159104. Its totient is φ = 551397600.

The previous prime is 827982853. The next prime is 827982877. The reversal of 827982861 is 168289728.

It is a happy number.

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

It is not a de Polignac number, because 827982861 - 2³ = 827982853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827982821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144465 + ... + 150086.

It is an arithmetic number, because the mean of its divisors is an integer number (138144888).

Almost surely, 2^827982861 is an apocalyptic number.

It is an amenable number.

827982861 is a deficient number, since it is larger than the sum of its proper divisors (277176243).

827982861 is a wasteful number, since it uses less digits than its factorization.

827982861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295491.

The product of its digits is 774144, while the sum is 51.

The square root of 827982861 is about 28774.6913276233. The cubic root of 827982861 is about 939.0177082156.

The spelling of 827982861 in words is "eight hundred twenty-seven million, nine hundred eighty-two thousand, eight hundred sixty-one".