289119923 has 4 divisors (see below), whose sum is σ = 289161408. Its totient is φ = 289078440.

The previous prime is 289119899. The next prime is 289119977. The reversal of 289119923 is 329911982.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 289119923 - 2²⁰ = 288071347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (289110923) 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 in 3 ways as a sum of consecutive naturals, for example, 7448 + ... + 25173.

It is an arithmetic number, because the mean of its divisors is an integer number (72290352).

Almost surely, 2^289119923 is an apocalyptic number.

289119923 is a deficient number, since it is larger than the sum of its proper divisors (41485).

289119923 is an equidigital number, since it uses as much as digits as its factorization.

289119923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41484.

The product of its digits is 69984, while the sum is 44.

The square root of 289119923 is about 17003.5267812298. The cubic root of 289119923 is about 661.2403389800.

The spelling of 289119923 in words is "two hundred eighty-nine million, one hundred nineteen thousand, nine hundred twenty-three".