163588889 has 2 divisors, whose sum is σ = 163588890. Its totient is φ = 163588888.

The previous prime is 163588871. The next prime is 163588897. The reversal of 163588889 is 988885361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152646025 + 10942864 = 12355^2 + 3308^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163588889 is a prime.

It is a super-2 number, since 2×163588889² = 53522649208508642, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (163588849) 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, 81794444 + 81794445.

It is an arithmetic number, because the mean of its divisors is an integer number (81794445).

Almost surely, 2^163588889 is an apocalyptic number.

It is an amenable number.

163588889 is a deficient number, since it is larger than the sum of its proper divisors (1).

163588889 is an equidigital number, since it uses as much as digits as its factorization.

163588889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3317760, while the sum is 56.

The square root of 163588889 is about 12790.1872152053. The cubic root of 163588889 is about 546.9126067592.

The spelling of 163588889 in words is "one hundred sixty-three million, five hundred eighty-eight thousand, eight hundred eighty-nine".