289489913 has 2 divisors, whose sum is σ = 289489914. Its totient is φ = 289489912.

The previous prime is 289489883. The next prime is 289489943. The reversal of 289489913 is 319984982.

It is a balanced prime because it is at equal distance from previous prime (289489883) and next prime (289489943).

It can be written as a sum of positive squares in only one way, i.e., 214095424 + 75394489 = 14632^2 + 8683^2 .

It is a cyclic number.

It is not a de Polignac number, because 289489913 - 2²⁸ = 21054457 is a prime.

It is not a weakly prime, because it can be changed into another prime (289489943) 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, 144744956 + 144744957.

It is an arithmetic number, because the mean of its divisors is an integer number (144744957).

Almost surely, 2^289489913 is an apocalyptic number.

It is an amenable number.

289489913 is a deficient number, since it is larger than the sum of its proper divisors (1).

289489913 is an equidigital number, since it uses as much as digits as its factorization.

289489913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 53.

The square root of 289489913 is about 17014.4031044289. The cubic root of 289489913 is about 661.5222842978.

The spelling of 289489913 in words is "two hundred eighty-nine million, four hundred eighty-nine thousand, nine hundred thirteen".