289689373 has 2 divisors, whose sum is σ = 289689374. Its totient is φ = 289689372.

The previous prime is 289689353. The next prime is 289689403. The reversal of 289689373 is 373986982.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 280797049 + 8892324 = 16757^2 + 2982^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-289689373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289689343) 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 as a sum of consecutive naturals, namely, 144844686 + 144844687.

It is an arithmetic number, because the mean of its divisors is an integer number (144844687).

Almost surely, 2^289689373 is an apocalyptic number.

It is an amenable number.

289689373 is a deficient number, since it is larger than the sum of its proper divisors (1).

289689373 is an equidigital number, since it uses as much as digits as its factorization.

289689373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3919104, while the sum is 55.

The square root of 289689373 is about 17020.2635996039. The cubic root of 289689373 is about 661.6741801399.

The spelling of 289689373 in words is "two hundred eighty-nine million, six hundred eighty-nine thousand, three hundred seventy-three".