1163984999 has 2 divisors, whose sum is σ = 1163985000. Its totient is φ = 1163984998.

The previous prime is 1163984953. The next prime is 1163985007. The reversal of 1163984999 is 9994893611.

It is a strong prime.

It is an emirp because it is prime and its reverse (9994893611) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1163984999 is a prime.

It is a super-2 number, since 2×1163984999² = 2709722155794060002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1163984909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581992499 + 581992500.

It is an arithmetic number, because the mean of its divisors is an integer number (581992500).

Almost surely, 2^1163984999 is an apocalyptic number.

1163984999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163984999 is an equidigital number, since it uses as much as digits as its factorization.

1163984999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3779136, while the sum is 59.

The square root of 1163984999 is about 34117.2243742072. The cubic root of 1163984999 is about 1051.9193914222.

The spelling of 1163984999 in words is "one billion, one hundred sixty-three million, nine hundred eighty-four thousand, nine hundred ninety-nine".