289172116 has 12 divisors (see below), whose sum is σ = 508848340. Its totient is φ = 143786880.

The previous prime is 289172113. The next prime is 289172129. The reversal of 289172116 is 611271982.

It can be written as a sum of positive squares in 2 ways, for example, as 2547216 + 286624900 = 1596^2 + 16930^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289172113) by changing a digit.

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, 198981 + ... + 200428.

Almost surely, 2^289172116 is an apocalyptic number.

It is an amenable number.

289172116 is a deficient number, since it is larger than the sum of its proper divisors (219676224).

289172116 is a wasteful number, since it uses less digits than its factorization.

289172116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399594 (or 399592 counting only the distinct ones).

The product of its digits is 12096, while the sum is 37.

The square root of 289172116 is about 17005.0614818059. The cubic root of 289172116 is about 661.2801264381.

The spelling of 289172116 in words is "two hundred eighty-nine million, one hundred seventy-two thousand, one hundred sixteen".