163949827 has 2 divisors, whose sum is σ = 163949828. Its totient is φ = 163949826.

The previous prime is 163949777. The next prime is 163949861. The reversal of 163949827 is 728949361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 163949827 - 2⁷ = 163949699 is a prime.

It is not a weakly prime, because it can be changed into another prime (163944827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81974913 + 81974914.

It is an arithmetic number, because the mean of its divisors is an integer number (81974914).

Almost surely, 2^163949827 is an apocalyptic number.

163949827 is a deficient number, since it is larger than the sum of its proper divisors (1).

163949827 is an equidigital number, since it uses as much as digits as its factorization.

163949827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 49.

The square root of 163949827 is about 12804.2893984789. The cubic root of 163949827 is about 547.3145422470.

The spelling of 163949827 in words is "one hundred sixty-three million, nine hundred forty-nine thousand, eight hundred twenty-seven".