42187883 has 4 divisors (see below), whose sum is σ = 42223440. Its totient is φ = 42152328.

The previous prime is 42187877. The next prime is 42187907. The reversal of 42187883 is 38878124.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42187883 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42187883.

It is not an unprimeable number, because it can be changed into a prime (42187813) 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, 15935 + ... + 18392.

It is an arithmetic number, because the mean of its divisors is an integer number (10555860).

Almost surely, 2^42187883 is an apocalyptic number.

42187883 is a deficient number, since it is larger than the sum of its proper divisors (35557).

42187883 is a wasteful number, since it uses less digits than its factorization.

42187883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35556.

The product of its digits is 86016, while the sum is 41.

The square root of 42187883 is about 6495.2200116701. The cubic root of 42187883 is about 348.1202159865.

The spelling of 42187883 in words is "forty-two million, one hundred eighty-seven thousand, eight hundred eighty-three".