289000004 has 6 divisors (see below), whose sum is σ = 505750014. Its totient is φ = 144500000.

The previous prime is 289000001. The next prime is 289000009. The reversal of 289000004 is 400000982.

289000004 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 289000000 + 4 = 17000^2 + 2^2 .

It is not an unprimeable number, because it can be changed into a prime (289000001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36124997 + ... + 36125004.

It is an arithmetic number, because the mean of its divisors is an integer number (84291669).

Almost surely, 2^289000004 is an apocalyptic number.

It is an amenable number.

289000004 is a deficient number, since it is larger than the sum of its proper divisors (216750010).

289000004 is a wasteful number, since it uses less digits than its factorization.

289000004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72250005 (or 72250003 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 289000004 is about 17000.0001176471. Note that the first 3 decimals coincide. The cubic root of 289000004 is about 661.1489048961.

Adding to 289000004 its reverse (400000982), we get a palindrome (689000986).

The spelling of 289000004 in words is "two hundred eighty-nine million, four", and thus it is an aban number.