289848856 has 16 divisors (see below), whose sum is σ = 592872840. Its totient is φ = 131749440.

The previous prime is 289848851. The next prime is 289848869. The reversal of 289848856 is 658848982.

It is a self number, because there is not a number n which added to its sum of digits gives 289848856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289848851) 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, 1646781 + ... + 1646956.

Almost surely, 2^289848856 is an apocalyptic number.

It is an amenable number.

289848856 is an abundant number, since it is smaller than the sum of its proper divisors (303023984).

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

289848856 is a wasteful number, since it uses less digits than its factorization.

289848856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3293754 (or 3293750 counting only the distinct ones).

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

The square root of 289848856 is about 17024.9480469105. The cubic root of 289848856 is about 661.7955819285.

The spelling of 289848856 in words is "two hundred eighty-nine million, eight hundred forty-eight thousand, eight hundred fifty-six".