289079239 has 8 divisors (see below), whose sum is σ = 296037632. Its totient is φ = 282131640.

The previous prime is 289079201. The next prime is 289079267. The reversal of 289079239 is 932970982.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-289079239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 289079192 and 289079201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289079299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84802 + ... + 88144.

It is an arithmetic number, because the mean of its divisors is an integer number (37004704).

Almost surely, 2^289079239 is an apocalyptic number.

289079239 is a deficient number, since it is larger than the sum of its proper divisors (6958393).

289079239 is a wasteful number, since it uses less digits than its factorization.

289079239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5397.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 289079239 is about 17002.3303990953. The cubic root of 289079239 is about 661.2093216734.

The spelling of 289079239 in words is "two hundred eighty-nine million, seventy-nine thousand, two hundred thirty-nine".