289039241 has 4 divisors (see below), whose sum is σ = 291118800. Its totient is φ = 286959684.

The previous prime is 289039211. The next prime is 289039243. The reversal of 289039241 is 142930982.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 289039241 - 2²⁶ = 221930377 is a prime.

It is a super-3 number, since 3×289039241³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 289039195 and 289039204.

It is not an unprimeable number, because it can be changed into a prime (289039243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1039571 + ... + 1039848.

It is an arithmetic number, because the mean of its divisors is an integer number (72779700).

Almost surely, 2^289039241 is an apocalyptic number.

It is an amenable number.

289039241 is a deficient number, since it is larger than the sum of its proper divisors (2079559).

289039241 is a wasteful number, since it uses less digits than its factorization.

289039241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079558.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 289039241 is about 17001.1541078834. The cubic root of 289039241 is about 661.1788245331.

The spelling of 289039241 in words is "two hundred eighty-nine million, thirty-nine thousand, two hundred forty-one".