42002887 has 4 divisors (see below), whose sum is σ = 42237720. Its totient is φ = 41768056.

The previous prime is 42002879. The next prime is 42002893. The reversal of 42002887 is 78820024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42002887 - 2³ = 42002879 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 (42002827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117148 + ... + 117505.

It is an arithmetic number, because the mean of its divisors is an integer number (10559430).

Almost surely, 2^42002887 is an apocalyptic number.

42002887 is a deficient number, since it is larger than the sum of its proper divisors (234833).

42002887 is a wasteful number, since it uses less digits than its factorization.

42002887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234832.

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 42002887 is about 6480.9634314660. The cubic root of 42002887 is about 347.6106288212.

The spelling of 42002887 in words is "forty-two million, two thousand, eight hundred eighty-seven".