827681011 has 2 divisors, whose sum is σ = 827681012. Its totient is φ = 827681010.

The previous prime is 827681003. The next prime is 827681027. The reversal of 827681011 is 110186728.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 827681011 - 2³ = 827681003 is a prime.

It is not a weakly prime, because it can be changed into another prime (827601011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413840505 + 413840506.

It is an arithmetic number, because the mean of its divisors is an integer number (413840506).

Almost surely, 2^827681011 is an apocalyptic number.

827681011 is a deficient number, since it is larger than the sum of its proper divisors (1).

827681011 is an equidigital number, since it uses as much as digits as its factorization.

827681011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 34.

The square root of 827681011 is about 28769.4457888921. The cubic root of 827681011 is about 938.9035846994.

The spelling of 827681011 in words is "eight hundred twenty-seven million, six hundred eighty-one thousand, eleven".