689584241 has 2 divisors, whose sum is σ = 689584242. Its totient is φ = 689584240.

The previous prime is 689584211. The next prime is 689584297. The reversal of 689584241 is 142485986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 379119841 + 310464400 = 19471^2 + 17620^2 .

It is a cyclic number.

It is not a de Polignac number, because 689584241 - 2⁶ = 689584177 is a prime.

It is not a weakly prime, because it can be changed into another prime (689584201) 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, 344792120 + 344792121.

It is an arithmetic number, because the mean of its divisors is an integer number (344792121).

Almost surely, 2^689584241 is an apocalyptic number.

It is an amenable number.

689584241 is a deficient number, since it is larger than the sum of its proper divisors (1).

689584241 is an equidigital number, since it uses as much as digits as its factorization.

689584241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 552960, while the sum is 47.

The square root of 689584241 is about 26259.9360433341. The cubic root of 689584241 is about 883.4780745689.

The spelling of 689584241 in words is "six hundred eighty-nine million, five hundred eighty-four thousand, two hundred forty-one".