289879828 has 12 divisors (see below), whose sum is σ = 579759712. Its totient is φ = 124234200.

The previous prime is 289879823. The next prime is 289879829. The reversal of 289879828 is 828978982.

289879828 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

289879828 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289879823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5176398 + ... + 5176453.

Almost surely, 2^289879828 is an apocalyptic number.

289879828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

289879828 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

289879828 is a wasteful number, since it uses less digits than its factorization.

289879828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10352862 (or 10352860 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 61.

The square root of 289879828 is about 17025.8576289126. The cubic root of 289879828 is about 661.8191532972.

The spelling of 289879828 in words is "two hundred eighty-nine million, eight hundred seventy-nine thousand, eight hundred twenty-eight".