289534039 has 4 divisors (see below), whose sum is σ = 292519024. Its totient is φ = 286549056.

The previous prime is 289534031. The next prime is 289534061. The reversal of 289534039 is 930435982.

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

It is a cyclic number.

It is not a de Polignac number, because 289534039 - 2³ = 289534031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 289533986 and 289534004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289534031) 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, 1492347 + ... + 1492540.

It is an arithmetic number, because the mean of its divisors is an integer number (73129756).

Almost surely, 2^289534039 is an apocalyptic number.

289534039 is a deficient number, since it is larger than the sum of its proper divisors (2984985).

289534039 is an equidigital number, since it uses as much as digits as its factorization.

289534039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2984984.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 289534039 is about 17015.6997799091. The cubic root of 289534039 is about 661.5558938158. Note that the first 3 decimals are identical.

The spelling of 289534039 in words is "two hundred eighty-nine million, five hundred thirty-four thousand, thirty-nine".