289228489 has 8 divisors (see below), whose sum is σ = 318775968. Its totient is φ = 260223360.

The previous prime is 289228483. The next prime is 289228501. The reversal of 289228489 is 984822982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 289228489 - 2⁹ = 289227977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (289228483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134467 + ... + 136600.

It is an arithmetic number, because the mean of its divisors is an integer number (39846996).

Almost surely, 2^289228489 is an apocalyptic number.

It is an amenable number.

289228489 is a deficient number, since it is larger than the sum of its proper divisors (29547479).

289228489 is a wasteful number, since it uses less digits than its factorization.

289228489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271175.

The product of its digits is 1327104, while the sum is 52.

The square root of 289228489 is about 17006.7189369378. The cubic root of 289228489 is about 661.3230949914.

The spelling of 289228489 in words is "two hundred eighty-nine million, two hundred twenty-eight thousand, four hundred eighty-nine".