289689275 has 12 divisors (see below), whose sum is σ = 361026000. Its totient is φ = 230582880.

The previous prime is 289689259. The next prime is 289689277. The reversal of 289689275 is 572986982.

It is not a de Polignac number, because 289689275 - 2⁴ = 289689259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 289689275.

It is not an unprimeable number, because it can be changed into a prime (289689277) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24140 + ... + 34089.

It is an arithmetic number, because the mean of its divisors is an integer number (30085500).

Almost surely, 2^289689275 is an apocalyptic number.

289689275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

289689275 is a deficient number, since it is larger than the sum of its proper divisors (71336725).

289689275 is a wasteful number, since it uses less digits than its factorization.

289689275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58438 (or 58433 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 56.

The square root of 289689275 is about 17020.2607206823. The cubic root of 289689275 is about 661.6741055265.

The spelling of 289689275 in words is "two hundred eighty-nine million, six hundred eighty-nine thousand, two hundred seventy-five".