289617893 has 8 divisors (see below), whose sum is σ = 305281920. Its totient is φ = 273996000.

The previous prime is 289617851. The next prime is 289617929. The reversal of 289617893 is 398716982.

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

It is a cyclic number.

It is not a de Polignac number, because 289617893 - 2⁸ = 289617637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289617193) 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, 4121 + ... + 24417.

It is an arithmetic number, because the mean of its divisors is an integer number (38160240).

Almost surely, 2^289617893 is an apocalyptic number.

It is an amenable number.

289617893 is a deficient number, since it is larger than the sum of its proper divisors (15664027).

289617893 is a wasteful number, since it uses less digits than its factorization.

289617893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21067.

The product of its digits is 1306368, while the sum is 53.

The square root of 289617893 is about 17018.1636200855. The cubic root of 289617893 is about 661.6197536111.

The spelling of 289617893 in words is "two hundred eighty-nine million, six hundred seventeen thousand, eight hundred ninety-three".