42887827 has 2 divisors, whose sum is σ = 42887828. Its totient is φ = 42887826.

The previous prime is 42887809. The next prime is 42887851. The reversal of 42887827 is 72878824.

42887827 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 42887827 - 2¹¹ = 42885779 is a prime.

It is not a weakly prime, because it can be changed into another prime (42887527) 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, 21443913 + 21443914.

It is an arithmetic number, because the mean of its divisors is an integer number (21443914).

Almost surely, 2^42887827 is an apocalyptic number.

42887827 is a deficient number, since it is larger than the sum of its proper divisors (1).

42887827 is an equidigital number, since it uses as much as digits as its factorization.

42887827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 401408, while the sum is 46.

The square root of 42887827 is about 6548.8798278790. The cubic root of 42887827 is about 350.0348999212.

The spelling of 42887827 in words is "forty-two million, eight hundred eighty-seven thousand, eight hundred twenty-seven".