42587443 has 2 divisors, whose sum is σ = 42587444. Its totient is φ = 42587442.

The previous prime is 42587429. The next prime is 42587471. The reversal of 42587443 is 34478524.

42587443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42587443 - 2²¹ = 40490291 is a prime.

It is not a weakly prime, because it can be changed into another prime (42587473) 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, 21293721 + 21293722.

It is an arithmetic number, because the mean of its divisors is an integer number (21293722).

Almost surely, 2^42587443 is an apocalyptic number.

42587443 is a deficient number, since it is larger than the sum of its proper divisors (1).

42587443 is an equidigital number, since it uses as much as digits as its factorization.

42587443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 37.

The square root of 42587443 is about 6525.9055310355. The cubic root of 42587443 is about 349.2157761221.

The spelling of 42587443 in words is "forty-two million, five hundred eighty-seven thousand, four hundred forty-three".