42808871 has 8 divisors (see below), whose sum is σ = 48972960. Its totient is φ = 36656928.

The previous prime is 42808849. The next prime is 42808877. The reversal of 42808871 is 17880824.

It is a happy number.

42808871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42808871 - 2¹⁰ = 42807847 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 (42808877) 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 7 ways as a sum of consecutive naturals, for example, 6545 + ... + 11333.

It is an arithmetic number, because the mean of its divisors is an integer number (6121620).

Almost surely, 2^42808871 is an apocalyptic number.

42808871 is a deficient number, since it is larger than the sum of its proper divisors (6164089).

42808871 is a wasteful number, since it uses less digits than its factorization.

42808871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6073.

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 42808871 is about 6542.8488443491. The cubic root of 42808871 is about 349.8199645508.

The spelling of 42808871 in words is "forty-two million, eight hundred eight thousand, eight hundred seventy-one".