42887841 has 4 divisors (see below), whose sum is σ = 57183792. Its totient is φ = 28591892.

The previous prime is 42887827. The next prime is 42887851. The reversal of 42887841 is 14878824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42887841 - 2⁵ = 42887809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42887793 and 42887802.

It is not an unprimeable number, because it can be changed into a prime (42887851) 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, 7147971 + ... + 7147976.

It is an arithmetic number, because the mean of its divisors is an integer number (14295948).

Almost surely, 2^42887841 is an apocalyptic number.

It is an amenable number.

42887841 is a deficient number, since it is larger than the sum of its proper divisors (14295951).

42887841 is a wasteful number, since it uses less digits than its factorization.

42887841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14295950.

The product of its digits is 114688, while the sum is 42.

The square root of 42887841 is about 6548.8808967640. The cubic root of 42887841 is about 350.0349380089.

The spelling of 42887841 in words is "forty-two million, eight hundred eighty-seven thousand, eight hundred forty-one".