42127727 has 4 divisors (see below), whose sum is σ = 42183000. Its totient is φ = 42072456.

The previous prime is 42127699. The next prime is 42127733. The reversal of 42127727 is 72772124.

It is a happy number.

42127727 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 42127727 - 2¹⁰ = 42126703 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42127693 and 42127702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42127747) 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, 26477 + ... + 28022.

It is an arithmetic number, because the mean of its divisors is an integer number (10545750).

Almost surely, 2^42127727 is an apocalyptic number.

42127727 is a deficient number, since it is larger than the sum of its proper divisors (55273).

42127727 is an equidigital number, since it uses as much as digits as its factorization.

42127727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55272.

The product of its digits is 10976, while the sum is 32.

The square root of 42127727 is about 6490.5875697043. The cubic root of 42127727 is about 347.9546749222.

The spelling of 42127727 in words is "forty-two million, one hundred twenty-seven thousand, seven hundred twenty-seven".