289390 has 16 divisors (see below), whose sum is σ = 533808. Its totient is φ = 112896.

The previous prime is 289381. The next prime is 289397. The reversal of 289390 is 93982.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289397) 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, 94 + ... + 766.

It is an arithmetic number, because the mean of its divisors is an integer number (33363).

2²⁸⁹³⁹⁰ is an apocalyptic number.

289390 is a deficient number, since it is larger than the sum of its proper divisors (244418).

289390 is a wasteful number, since it uses less digits than its factorization.

289390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 289390 is about 537.9498117854. The cubic root of 289390 is about 66.1446170786.

The spelling of 289390 in words is "two hundred eighty-nine thousand, three hundred ninety".