42871867 has 4 divisors (see below), whose sum is σ = 42967800. Its totient is φ = 42775936.

The previous prime is 42871823. The next prime is 42871877. The reversal of 42871867 is 76817824.

42871867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42871867 - 2¹⁹ = 42347579 is a prime.

It is a super-3 number, since 3×42871867³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42871877) 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 3 ways as a sum of consecutive naturals, for example, 47293 + ... + 48190.

It is an arithmetic number, because the mean of its divisors is an integer number (10741950).

Almost surely, 2^42871867 is an apocalyptic number.

42871867 is a deficient number, since it is larger than the sum of its proper divisors (95933).

42871867 is an equidigital number, since it uses as much as digits as its factorization.

42871867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95932.

The product of its digits is 150528, while the sum is 43.

The square root of 42871867 is about 6547.6611854921. The cubic root of 42871867 is about 349.9914746223.

The spelling of 42871867 in words is "forty-two million, eight hundred seventy-one thousand, eight hundred sixty-seven".