42835887 has 6 divisors (see below), whose sum is σ = 61874072. Its totient is φ = 28557252.

The previous prime is 42835883. The next prime is 42835901. The reversal of 42835887 is 78853824.

It is not a de Polignac number, because 42835887 - 2² = 42835883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42835883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2379763 + ... + 2379780.

Almost surely, 2^42835887 is an apocalyptic number.

42835887 is a deficient number, since it is larger than the sum of its proper divisors (19038185).

42835887 is a wasteful number, since it uses less digits than its factorization.

42835887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4759549 (or 4759546 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 42835887 is about 6544.9130628298. The cubic root of 42835887 is about 349.8935376878.

It can be divided in two parts, 428 and 35887, that added together give a triangular number (36315 = T₂₆₉).

The spelling of 42835887 in words is "forty-two million, eight hundred thirty-five thousand, eight hundred eighty-seven".