289973968 has 20 divisors (see below), whose sum is σ = 563427108. Its totient is φ = 144573440.

The previous prime is 289973963. The next prime is 289973977. The reversal of 289973968 is 869379982.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 180311184 + 109662784 = 13428^2 + 10472^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289973963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20023 + ... + 31318.

Almost surely, 2^289973968 is an apocalyptic number.

It is an amenable number.

289973968 is a deficient number, since it is larger than the sum of its proper divisors (273453140).

289973968 is a wasteful number, since it uses less digits than its factorization.

289973968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51702 (or 51696 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 61.

The square root of 289973968 is about 17028.6220229354. The cubic root of 289973968 is about 661.8907886277.

It can be divided in two parts, 2899 and 73968, that added together give a palindrome (76867).

The spelling of 289973968 in words is "two hundred eighty-nine million, nine hundred seventy-three thousand, nine hundred sixty-eight".