42771867 has 4 divisors (see below), whose sum is σ = 57029160. Its totient is φ = 28514576.

The previous prime is 42771857. The next prime is 42771913. The reversal of 42771867 is 76817724.

42771867 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 42771867 - 2⁶ = 42771803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42771857) 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, 7128642 + ... + 7128647.

It is an arithmetic number, because the mean of its divisors is an integer number (14257290).

Almost surely, 2^42771867 is an apocalyptic number.

42771867 is a deficient number, since it is larger than the sum of its proper divisors (14257293).

42771867 is a wasteful number, since it uses less digits than its factorization.

42771867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14257292.

The product of its digits is 131712, while the sum is 42.

The square root of 42771867 is about 6540.0204128122. The cubic root of 42771867 is about 349.7191406696.

The spelling of 42771867 in words is "forty-two million, seven hundred seventy-one thousand, eight hundred sixty-seven".