289690 has 16 divisors (see below), whose sum is σ = 531360. Its totient is φ = 113680.

The previous prime is 289669. The next prime is 289717. The reversal of 289690 is 96982.

It is a super-2 number, since 2×289690² = 167840592200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345 + ... + 835.

It is an arithmetic number, because the mean of its divisors is an integer number (33210).

2²⁸⁹⁶⁹⁰ is an apocalyptic number.

289690 is a deficient number, since it is larger than the sum of its proper divisors (241670).

289690 is a wasteful number, since it uses less digits than its factorization.

289690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 289690 is about 538.2285759786. The cubic root of 289690 is about 66.1674657513.

It can be divided in two parts, 289 and 690, that added together give a palindrome (979).

The spelling of 289690 in words is "two hundred eighty-nine thousand, six hundred ninety".