163088889 has 4 divisors (see below), whose sum is σ = 217451856. Its totient is φ = 108725924.

The previous prime is 163088879. The next prime is 163088903. The reversal of 163088889 is 988880361.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 163088889 - 2⁴ = 163088873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163088879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27181479 + ... + 27181484.

It is an arithmetic number, because the mean of its divisors is an integer number (54362964).

Almost surely, 2^163088889 is an apocalyptic number.

It is an amenable number.

163088889 is a deficient number, since it is larger than the sum of its proper divisors (54362967).

163088889 is an equidigital number, since it uses as much as digits as its factorization.

163088889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54362966.

The product of its (nonzero) digits is 663552, while the sum is 51.

The square root of 163088889 is about 12770.6260222434. The cubic root of 163088889 is about 546.3548358326.

The spelling of 163088889 in words is "one hundred sixty-three million, eighty-eight thousand, eight hundred eighty-nine".