42635887 has 16 divisors (see below), whose sum is σ = 50803200. Its totient is φ = 35007840.

The previous prime is 42635861. The next prime is 42635891. The reversal of 42635887 is 78853624.

42635887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42635887 - 2⁷ = 42635759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42635587) 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 15 ways as a sum of consecutive naturals, for example, 27462 + ... + 28972.

It is an arithmetic number, because the mean of its divisors is an integer number (3175200).

Almost surely, 2^42635887 is an apocalyptic number.

42635887 is a deficient number, since it is larger than the sum of its proper divisors (8167313).

42635887 is a wasteful number, since it uses less digits than its factorization.

42635887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686.

The product of its digits is 322560, while the sum is 43.

The square root of 42635887 is about 6529.6161449200. The cubic root of 42635887 is about 349.3481390699.

The spelling of 42635887 in words is "forty-two million, six hundred thirty-five thousand, eight hundred eighty-seven".