42297589 has 2 divisors, whose sum is σ = 42297590. Its totient is φ = 42297588.

The previous prime is 42297557. The next prime is 42297599. The reversal of 42297589 is 98579224.

42297589 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., 37271025 + 5026564 = 6105^2 + 2242^2 .

It is a cyclic number.

It is not a de Polignac number, because 42297589 - 2⁵ = 42297557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42297599) 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, 21148794 + 21148795.

It is an arithmetic number, because the mean of its divisors is an integer number (21148795).

Almost surely, 2^42297589 is an apocalyptic number.

It is an amenable number.

42297589 is a deficient number, since it is larger than the sum of its proper divisors (1).

42297589 is an equidigital number, since it uses as much as digits as its factorization.

42297589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 46.

The square root of 42297589 is about 6503.6596620672. The cubic root of 42297589 is about 348.4217071368.

The spelling of 42297589 in words is "forty-two million, two hundred ninety-seven thousand, five hundred eighty-nine".