289105946 has 8 divisors (see below), whose sum is σ = 433962144. Its totient is φ = 144451900.

The previous prime is 289105939. The next prime is 289105963. The reversal of 289105946 is 649501982.

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

It is a junction number, because it is equal to n+sod(n) for n = 289105897 and 289105906.

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, 46910 + ... + 52713.

It is an arithmetic number, because the mean of its divisors is an integer number (54245268).

Almost surely, 2^289105946 is an apocalyptic number.

289105946 is a deficient number, since it is larger than the sum of its proper divisors (144856198).

289105946 is a wasteful number, since it uses less digits than its factorization.

289105946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101076.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 289105946 is about 17003.1157732928. The cubic root of 289105946 is about 661.2296833034.

The spelling of 289105946 in words is "two hundred eighty-nine million, one hundred five thousand, nine hundred forty-six".