289897472 has 44 divisors (see below), whose sum is σ = 585458376. Its totient is φ = 143462400.

The previous prime is 289897463. The next prime is 289897499. The reversal of 289897472 is 274798982.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102023 + ... + 104825.

Almost surely, 2^289897472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289897472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292729188).

289897472 is an abundant number, since it is smaller than the sum of its proper divisors (295560904).

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

289897472 is a wasteful number, since it uses less digits than its factorization.

289897472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2924 (or 2906 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 56.

The square root of 289897472 is about 17026.3757740748. The cubic root of 289897472 is about 661.8325805857.

The spelling of 289897472 in words is "two hundred eighty-nine million, eight hundred ninety-seven thousand, four hundred seventy-two".