289748 has 12 divisors (see below), whose sum is σ = 537012. Its totient is φ = 136320.

The previous prime is 289741. The next prime is 289759. The reversal of 289748 is 847982.

It can be written as a sum of positive squares in 2 ways, for example, as 258064 + 31684 = 508^2 + 178^2 .

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 289748.

It is not an unprimeable number, because it can be changed into a prime (289741) by changing a digit.

289748 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, 2063 + ... + 2198.

It is an arithmetic number, because the mean of its divisors is an integer number (44751).

2²⁸⁹⁷⁴⁸ is an apocalyptic number.

It is an amenable number.

289748 is a deficient number, since it is larger than the sum of its proper divisors (247264).

289748 is a wasteful number, since it uses less digits than its factorization.

289748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4282 (or 4280 counting only the distinct ones).

The product of its digits is 32256, while the sum is 38.

The square root of 289748 is about 538.2824537360. The cubic root of 289748 is about 66.1718813414.

It can be divided in two parts, 28974 and 8, that added together give a palindrome (28982).

The spelling of 289748 in words is "two hundred eighty-nine thousand, seven hundred forty-eight".