8199170827 has 2 divisors, whose sum is σ = 8199170828. Its totient is φ = 8199170826.

The previous prime is 8199170797. The next prime is 8199170849. The reversal of 8199170827 is 7280719918.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8199170827 is a prime.

It is not a weakly prime, because it can be changed into another prime (8199170027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4099585413 + 4099585414.

It is an arithmetic number, because the mean of its divisors is an integer number (4099585414).

Almost surely, 2^8199170827 is an apocalyptic number.

8199170827 is a deficient number, since it is larger than the sum of its proper divisors (1).

8199170827 is an equidigital number, since it uses as much as digits as its factorization.

8199170827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 52.

The square root of 8199170827 is about 90549.2729236409. The cubic root of 8199170827 is about 2016.4617033351.

The spelling of 8199170827 in words is "eight billion, one hundred ninety-nine million, one hundred seventy thousand, eight hundred twenty-seven".