289392 has 20 divisors (see below), whose sum is σ = 747720. Its totient is φ = 96448.

The previous prime is 289381. The next prime is 289397. The reversal of 289392 is 293982.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 289392.

It is not an unprimeable number, because it can be changed into a prime (289397) by changing a digit.

289392 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 in 3 ways as a sum of consecutive naturals, for example, 2967 + ... + 3062.

It is an arithmetic number, because the mean of its divisors is an integer number (37386).

2²⁸⁹³⁹² is an apocalyptic number.

It is an amenable number.

289392 is an abundant number, since it is smaller than the sum of its proper divisors (458328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

289392 is a wasteful number, since it uses less digits than its factorization.

289392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6040 (or 6034 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 289392 is about 537.9516706917. The cubic root of 289392 is about 66.1447694554.

The spelling of 289392 in words is "two hundred eighty-nine thousand, three hundred ninety-two".