42960089 has 2 divisors, whose sum is σ = 42960090. Its totient is φ = 42960088.

The previous prime is 42960077. The next prime is 42960091. The reversal of 42960089 is 98006924.

42960089 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., 26419600 + 16540489 = 5140^2 + 4067^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42960089 is a prime.

Together with 42960091, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42960019) 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, 21480044 + 21480045.

It is an arithmetic number, because the mean of its divisors is an integer number (21480045).

Almost surely, 2^42960089 is an apocalyptic number.

It is an amenable number.

42960089 is a deficient number, since it is larger than the sum of its proper divisors (1).

42960089 is an equidigital number, since it uses as much as digits as its factorization.

42960089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 42960089 is about 6554.3946326110. The cubic root of 42960089 is about 350.2313816959.

The spelling of 42960089 in words is "forty-two million, nine hundred sixty thousand, eighty-nine".