289023039 has 8 divisors (see below), whose sum is σ = 428182320. Its totient is φ = 192682008.

The previous prime is 289023017. The next prime is 289023067. The reversal of 289023039 is 930320982.

It is not a de Polignac number, because 289023039 - 2²¹ = 286925887 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 289022994 and 289023012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289023439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5352252 + ... + 5352305.

It is an arithmetic number, because the mean of its divisors is an integer number (53522790).

Almost surely, 2^289023039 is an apocalyptic number.

289023039 is a deficient number, since it is larger than the sum of its proper divisors (139159281).

289023039 is a wasteful number, since it uses less digits than its factorization.

289023039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10704566 (or 10704560 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 289023039 is about 17000.6776041427. The cubic root of 289023039 is about 661.1664702481.

The spelling of 289023039 in words is "two hundred eighty-nine million, twenty-three thousand, thirty-nine".