42587437 has 4 divisors (see below), whose sum is σ = 42660576. Its totient is φ = 42514300.

The previous prime is 42587429. The next prime is 42587443. The reversal of 42587437 is 73478524.

42587437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42587437 - 2³ = 42587429 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42587437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42587477) 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 in 3 ways as a sum of consecutive naturals, for example, 35689 + ... + 36862.

It is an arithmetic number, because the mean of its divisors is an integer number (10665144).

Almost surely, 2^42587437 is an apocalyptic number.

It is an amenable number.

42587437 is a deficient number, since it is larger than the sum of its proper divisors (73139).

42587437 is an equidigital number, since it uses as much as digits as its factorization.

42587437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73138.

The product of its digits is 188160, while the sum is 40.

The square root of 42587437 is about 6525.9050713292. The cubic root of 42587437 is about 349.2157597221.

The spelling of 42587437 in words is "forty-two million, five hundred eighty-seven thousand, four hundred thirty-seven".