289856884 has 12 divisors (see below), whose sum is σ = 507868704. Its totient is φ = 144751544.

The previous prime is 289856843. The next prime is 289856887. The reversal of 289856884 is 488658982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289856887) 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, 40504 + ... + 47119.

It is an arithmetic number, because the mean of its divisors is an integer number (42322392).

Almost surely, 2^289856884 is an apocalyptic number.

It is an amenable number.

289856884 is a deficient number, since it is larger than the sum of its proper divisors (218011820).

289856884 is a wasteful number, since it uses less digits than its factorization.

289856884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88454 (or 88452 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 58.

The square root of 289856884 is about 17025.1838169225. The cubic root of 289856884 is about 661.8016918323.

The spelling of 289856884 in words is "two hundred eighty-nine million, eight hundred fifty-six thousand, eight hundred eighty-four".