827281281 has 8 divisors (see below), whose sum is σ = 1114413664. Its totient is φ = 545834880.

The previous prime is 827281277. The next prime is 827281291. The reversal of 827281281 is 182182728.

827281281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 827281281 - 2² = 827281277 is a prime.

It is a super-2 number, since 2×827281281² = 1368788635786001922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (827281211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1421155 + ... + 1421736.

It is an arithmetic number, because the mean of its divisors is an integer number (139301708).

Almost surely, 2^827281281 is an apocalyptic number.

It is an amenable number.

827281281 is a deficient number, since it is larger than the sum of its proper divisors (287132383).

827281281 is a wasteful number, since it uses less digits than its factorization.

827281281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2842991.

The product of its digits is 28672, while the sum is 39.

The square root of 827281281 is about 28762.4978226857. The cubic root of 827281281 is about 938.7524119813.

The spelling of 827281281 in words is "eight hundred twenty-seven million, two hundred eighty-one thousand, two hundred eighty-one".