289675217 has 4 divisors (see below), whose sum is σ = 311957940. Its totient is φ = 267392496.

The previous prime is 289675213. The next prime is 289675249. The reversal of 289675217 is 712576982.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 172948801 + 116726416 = 13151^2 + 10804^2 .

It is a cyclic number.

It is not a de Polignac number, because 289675217 - 2² = 289675213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (289675213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11141342 + ... + 11141367.

It is an arithmetic number, because the mean of its divisors is an integer number (77989485).

Almost surely, 2^289675217 is an apocalyptic number.

It is an amenable number.

289675217 is a deficient number, since it is larger than the sum of its proper divisors (22282723).

289675217 is a wasteful number, since it uses less digits than its factorization.

289675217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22282722.

The product of its digits is 423360, while the sum is 47.

The square root of 289675217 is about 17019.8477372743. The cubic root of 289675217 is about 661.6634021444.

The spelling of 289675217 in words is "two hundred eighty-nine million, six hundred seventy-five thousand, two hundred seventeen".