996171563 has 2 divisors, whose sum is σ = 996171564. Its totient is φ = 996171562.

The previous prime is 996171557. The next prime is 996171569. The reversal of 996171563 is 365171699.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (996171557) and next prime (996171569).

It is an emirp because it is prime and its reverse (365171699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 996171563 - 2⁸ = 996171307 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (996171569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498085781 + 498085782.

It is an arithmetic number, because the mean of its divisors is an integer number (498085782).

Almost surely, 2^996171563 is an apocalyptic number.

996171563 is a deficient number, since it is larger than the sum of its proper divisors (1).

996171563 is an equidigital number, since it uses as much as digits as its factorization.

996171563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 306180, while the sum is 47.

The square root of 996171563 is about 31562.1856499197. The cubic root of 996171563 is about 998.7222223129.

The spelling of 996171563 in words is "nine hundred ninety-six million, one hundred seventy-one thousand, five hundred sixty-three".