289290473 has 2 divisors, whose sum is σ = 289290474. Its totient is φ = 289290472.

The previous prime is 289290467. The next prime is 289290493. The reversal of 289290473 is 374092982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 275659609 + 13630864 = 16603^2 + 3692^2 .

It is a cyclic number.

It is not a de Polignac number, because 289290473 - 2¹⁶ = 289224937 is a prime.

It is not a weakly prime, because it can be changed into another prime (289290403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144645236 + 144645237.

It is an arithmetic number, because the mean of its divisors is an integer number (144645237).

Almost surely, 2^289290473 is an apocalyptic number.

It is an amenable number.

289290473 is a deficient number, since it is larger than the sum of its proper divisors (1).

289290473 is an equidigital number, since it uses as much as digits as its factorization.

289290473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 289290473 is about 17008.5411778906. The cubic root of 289290473 is about 661.3703339096.

The spelling of 289290473 in words is "two hundred eighty-nine million, two hundred ninety thousand, four hundred seventy-three".