42547843 has 8 divisors (see below), whose sum is σ = 47401200. Its totient is φ = 37920288.

The previous prime is 42547829. The next prime is 42547847. The reversal of 42547843 is 34874524.

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 42547843 - 2⁵ = 42547811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42547847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56053 + ... + 56806.

It is an arithmetic number, because the mean of its divisors is an integer number (5925150).

Almost surely, 2^42547843 is an apocalyptic number.

42547843 is a deficient number, since it is larger than the sum of its proper divisors (4853357).

42547843 is a wasteful number, since it uses less digits than its factorization.

42547843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112901.

The product of its digits is 107520, while the sum is 37.

The square root of 42547843 is about 6522.8707637052. The cubic root of 42547843 is about 349.1075029452.

The spelling of 42547843 in words is "forty-two million, five hundred forty-seven thousand, eight hundred forty-three".