289108 has 6 divisors (see below), whose sum is σ = 505946. Its totient is φ = 144552.
The previous prime is 289103. The next prime is 289109. The reversal of 289108 is 801982.
289108 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in only one way, i.e., 283024 + 6084 = 532^2 + 78^2 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (289103) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36135 + ... + 36142.
2289108 is an apocalyptic number.
It is an amenable number.
289108 is a deficient number, since it is larger than the sum of its proper divisors (216838).
289108 is a wasteful number, since it uses less digits than its factorization.
289108 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 72281 (or 72279 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 28.
The square root of 289108 is about 537.6876416657. The cubic root of 289108 is about 66.1231249238.
The spelling of 289108 in words is "two hundred eighty-nine thousand, one hundred eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •