42231727 has 4 divisors (see below), whose sum is σ = 42313000. Its totient is φ = 42150456.

The previous prime is 42231713. The next prime is 42231733. The reversal of 42231727 is 72713224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42231727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42231695 and 42231704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42231767) 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, 39852 + ... + 40897.

It is an arithmetic number, because the mean of its divisors is an integer number (10578250).

Almost surely, 2^42231727 is an apocalyptic number.

42231727 is a deficient number, since it is larger than the sum of its proper divisors (81273).

42231727 is an equidigital number, since it uses as much as digits as its factorization.

42231727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81272.

The product of its digits is 4704, while the sum is 28.

The square root of 42231727 is about 6498.5942326014. The cubic root of 42231727 is about 348.2407695463.

The spelling of 42231727 in words is "forty-two million, two hundred thirty-one thousand, seven hundred twenty-seven".