42771 has 8 divisors (see below), whose sum is σ = 58320. Its totient is φ = 27872.

The previous prime is 42767. The next prime is 42773. The reversal of 42771 is 17724.

42771 is digitally balanced in base 2 and base 4, because in such bases 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 a cyclic number.

It is not a de Polignac number, because 42771 - 2² = 42767 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42773) 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, 25 + ... + 293.

It is an arithmetic number, because the mean of its divisors is an integer number (7290).

2⁴²⁷⁷¹ is an apocalyptic number.

42771 is a deficient number, since it is larger than the sum of its proper divisors (15549).

42771 is a wasteful number, since it uses less digits than its factorization.

42771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325.

The product of its digits is 392, while the sum is 21.

The square root of 42771 is about 206.8115083838. The cubic root of 42771 is about 34.9716777679.

It can be divided in two parts, 4277 and 1, that added together give a triangular number (4278 = T₉₂).

The spelling of 42771 in words is "forty-two thousand, seven hundred seventy-one", and thus it is an iban number.