289004473 has 2 divisors, whose sum is σ = 289004474. Its totient is φ = 289004472.

The previous prime is 289004461. The next prime is 289004483. The reversal of 289004473 is 374400982.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221057424 + 67947049 = 14868^2 + 8243^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-289004473 is a prime.

It is not a weakly prime, because it can be changed into another prime (289004483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144502236 + 144502237.

It is an arithmetic number, because the mean of its divisors is an integer number (144502237).

Almost surely, 2^289004473 is an apocalyptic number.

It is an amenable number.

289004473 is a deficient number, since it is larger than the sum of its proper divisors (1).

289004473 is an equidigital number, since it uses as much as digits as its factorization.

289004473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 289004473 is about 17000.1315583145. The cubic root of 289004473 is about 661.1523128075.

The spelling of 289004473 in words is "two hundred eighty-nine million, four thousand, four hundred seventy-three".