42813871 has 8 divisors (see below), whose sum is σ = 46010160. Its totient is φ = 39692928.

The previous prime is 42813863. The next prime is 42813893. The reversal of 42813871 is 17831824.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42813871 - 2³ = 42813863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42813811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17656 + ... + 19933.

It is an arithmetic number, because the mean of its divisors is an integer number (5751270).

Almost surely, 2^42813871 is an apocalyptic number.

42813871 is a deficient number, since it is larger than the sum of its proper divisors (3196289).

42813871 is a wasteful number, since it uses less digits than its factorization.

42813871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37673.

The product of its digits is 10752, while the sum is 34.

The square root of 42813871 is about 6543.2309297472. The cubic root of 42813871 is about 349.8335834705.

The spelling of 42813871 in words is "forty-two million, eight hundred thirteen thousand, eight hundred seventy-one".