289328568 has 16 divisors (see below), whose sum is σ = 723321480. Its totient is φ = 96442848.

The previous prime is 289328527. The next prime is 289328609. The reversal of 289328568 is 865823982.

289328568 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (289328527) and next prime (289328609).

It is a super-2 number, since 2×289328568² = 167422040521861248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 289328568.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6027655 + ... + 6027702.

Almost surely, 2^289328568 is an apocalyptic number.

It is an amenable number.

289328568 is an abundant number, since it is smaller than the sum of its proper divisors (433992912).

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

289328568 is a wasteful number, since it uses less digits than its factorization.

289328568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12055366 (or 12055362 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 51.

The square root of 289328568 is about 17009.6610195500. The cubic root of 289328568 is about 661.3993633216.

The spelling of 289328568 in words is "two hundred eighty-nine million, three hundred twenty-eight thousand, five hundred sixty-eight".