289790 has 8 divisors (see below), whose sum is σ = 521640. Its totient is φ = 115912.

The previous prime is 289789. The next prime is 289837. The reversal of 289790 is 97982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 289790.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14480 + ... + 14499.

It is an arithmetic number, because the mean of its divisors is an integer number (65205).

2²⁸⁹⁷⁹⁰ is an apocalyptic number.

289790 is a deficient number, since it is larger than the sum of its proper divisors (231850).

289790 is a wasteful number, since it uses less digits than its factorization.

289790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28986.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 289790 is about 538.3214652975. The cubic root of 289790 is about 66.1750784699.

The spelling of 289790 in words is "two hundred eighty-nine thousand, seven hundred ninety".