827491163 has 2 divisors, whose sum is σ = 827491164. Its totient is φ = 827491162.

The previous prime is 827491141. The next prime is 827491213. The reversal of 827491163 is 361194728.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 827491163 - 2¹⁸ = 827229019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 827491163.

It is not a weakly prime, because it can be changed into another prime (827491103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413745581 + 413745582.

It is an arithmetic number, because the mean of its divisors is an integer number (413745582).

Almost surely, 2^827491163 is an apocalyptic number.

827491163 is a deficient number, since it is larger than the sum of its proper divisors (1).

827491163 is an equidigital number, since it uses as much as digits as its factorization.

827491163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 41.

The square root of 827491163 is about 28766.1461270014. The cubic root of 827491163 is about 938.8317927105.

The spelling of 827491163 in words is "eight hundred twenty-seven million, four hundred ninety-one thousand, one hundred sixty-three".