289346852 has 24 divisors (see below), whose sum is σ = 518778624. Its totient is φ = 141144192.

The previous prime is 289346821. The next prime is 289346857. The reversal of 289346852 is 258643982.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a junction number, because it is equal to n+sod(n) for n = 289346797 and 289346806.

It is not an unprimeable number, because it can be changed into a prime (289346857) 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 7 ways as a sum of consecutive naturals, for example, 61073 + ... + 65639.

It is an arithmetic number, because the mean of its divisors is an integer number (21615776).

Almost surely, 2^289346852 is an apocalyptic number.

It is an amenable number.

289346852 is a deficient number, since it is larger than the sum of its proper divisors (229431772).

289346852 is a wasteful number, since it uses less digits than its factorization.

289346852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4955 (or 4953 counting only the distinct ones).

The product of its digits is 829440, while the sum is 47.

The square root of 289346852 is about 17010.1984703295. The cubic root of 289346852 is about 661.4132953152.

The spelling of 289346852 in words is "two hundred eighty-nine million, three hundred forty-six thousand, eight hundred fifty-two".