42587267 has 2 divisors, whose sum is σ = 42587268. Its totient is φ = 42587266.

The previous prime is 42587239. The next prime is 42587269. The reversal of 42587267 is 76278524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42587267 - 2⁸ = 42587011 is a prime.

Together with 42587269, 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 (42587269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21293633 + 21293634.

It is an arithmetic number, because the mean of its divisors is an integer number (21293634).

Almost surely, 2^42587267 is an apocalyptic number.

42587267 is a deficient number, since it is larger than the sum of its proper divisors (1).

42587267 is an equidigital number, since it uses as much as digits as its factorization.

42587267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 41.

The square root of 42587267 is about 6525.8920463029. The cubic root of 42587267 is about 349.2152950565.

The spelling of 42587267 in words is "forty-two million, five hundred eighty-seven thousand, two hundred sixty-seven".