42547893 has 4 divisors (see below), whose sum is σ = 56730528. Its totient is φ = 28365260.

The previous prime is 42547867. The next prime is 42547913. The reversal of 42547893 is 39874524.

42547893 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42547893 - 2⁶ = 42547829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42547093) 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, 7091313 + ... + 7091318.

It is an arithmetic number, because the mean of its divisors is an integer number (14182632).

Almost surely, 2^42547893 is an apocalyptic number.

It is an amenable number.

42547893 is a deficient number, since it is larger than the sum of its proper divisors (14182635).

42547893 is a wasteful number, since it uses less digits than its factorization.

42547893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14182634.

The product of its digits is 241920, while the sum is 42.

The square root of 42547893 is about 6522.8745963724. The cubic root of 42547893 is about 349.1076396962.

The spelling of 42547893 in words is "forty-two million, five hundred forty-seven thousand, eight hundred ninety-three".