289217398 has 16 divisors (see below), whose sum is σ = 447858576. Its totient is φ = 139991040.

The previous prime is 289217389. The next prime is 289217417. The reversal of 289217398 is 893712982.

289217398 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5163 + ... + 24598.

It is an arithmetic number, because the mean of its divisors is an integer number (27991161).

Almost surely, 2^289217398 is an apocalyptic number.

289217398 is a deficient number, since it is larger than the sum of its proper divisors (158641178).

289217398 is a wasteful number, since it uses less digits than its factorization.

289217398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29919.

The product of its digits is 435456, while the sum is 49.

The square root of 289217398 is about 17006.3928568053. The cubic root of 289217398 is about 661.3146416653.

The spelling of 289217398 in words is "two hundred eighty-nine million, two hundred seventeen thousand, three hundred ninety-eight".