42771727 has 4 divisors (see below), whose sum is σ = 42794856. Its totient is φ = 42748600.

The previous prime is 42771721. The next prime is 42771731. The reversal of 42771727 is 72717724.

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 42771727 - 2³ = 42771719 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 (42771721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8524 + ... + 12577.

It is an arithmetic number, because the mean of its divisors is an integer number (10698714).

Almost surely, 2^42771727 is an apocalyptic number.

42771727 is a deficient number, since it is larger than the sum of its proper divisors (23129).

42771727 is a wasteful number, since it uses less digits than its factorization.

42771727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23128.

The product of its digits is 38416, while the sum is 37.

The square root of 42771727 is about 6540.0097094729. The cubic root of 42771727 is about 349.7187591047.

The spelling of 42771727 in words is "forty-two million, seven hundred seventy-one thousand, seven hundred twenty-seven".