827796861 has 24 divisors (see below), whose sum is σ = 1302760640. Its totient is φ = 519397056.

The previous prime is 827796829. The next prime is 827796863. The reversal of 827796861 is 168697728.

It is not a de Polignac number, because 827796861 - 2⁵ = 827796829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 827796798 and 827796807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827796863) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45241 + ... + 60846.

Almost surely, 2^827796861 is an apocalyptic number.

It is an amenable number.

827796861 is a deficient number, since it is larger than the sum of its proper divisors (474963779).

827796861 is a wasteful number, since it uses less digits than its factorization.

827796861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106130 (or 106107 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The square root of 827796861 is about 28771.4591392234. The cubic root of 827796861 is about 938.9473885741.

The spelling of 827796861 in words is "eight hundred twenty-seven million, seven hundred ninety-six thousand, eight hundred sixty-one".