742569589 has 2 divisors, whose sum is σ = 742569590. Its totient is φ = 742569588.

The previous prime is 742569551. The next prime is 742569593. The reversal of 742569589 is 985965247.

742569589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 375080689 + 367488900 = 19367^2 + 19170^2 .

It is an emirp because it is prime and its reverse (985965247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 742569589 - 2¹⁷ = 742438517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (742569599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371284794 + 371284795.

It is an arithmetic number, because the mean of its divisors is an integer number (371284795).

Almost surely, 2^742569589 is an apocalyptic number.

It is an amenable number.

742569589 is a deficient number, since it is larger than the sum of its proper divisors (1).

742569589 is an equidigital number, since it uses as much as digits as its factorization.

742569589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5443200, while the sum is 55.

The square root of 742569589 is about 27250.1300730841. The cubic root of 742569589 is about 905.5498989034.

It can be divided in two parts, 74256 and 9589, that added together give a triangular number (83845 = T₄₀₉).

The spelling of 742569589 in words is "seven hundred forty-two million, five hundred sixty-nine thousand, five hundred eighty-nine".