289528 has 8 divisors (see below), whose sum is σ = 542880. Its totient is φ = 144760.

The previous prime is 289511. The next prime is 289543. The reversal of 289528 is 825982.

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 289493 and 289502.

It is a congruent number.

It is an unprimeable number.

289528 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18088 + ... + 18103.

It is an arithmetic number, because the mean of its divisors is an integer number (67860).

2²⁸⁹⁵²⁸ is an apocalyptic number.

It is an amenable number.

289528 is a deficient number, since it is larger than the sum of its proper divisors (253352).

289528 is a wasteful number, since it uses less digits than its factorization.

289528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36197 (or 36193 counting only the distinct ones).

The product of its digits is 11520, while the sum is 34.

The square root of 289528 is about 538.0780612513. The cubic root of 289528 is about 66.1551294283.

The spelling of 289528 in words is "two hundred eighty-nine thousand, five hundred twenty-eight".