42684843 has 8 divisors (see below), whose sum is σ = 56982528. Its totient is φ = 28421864.

The previous prime is 42684833. The next prime is 42684881. The reversal of 42684843 is 34848624.

42684843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42684843 - 2¹⁰ = 42683819 is a prime.

It is a super-3 number, since 3×42684843³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (42684833) 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 7 ways as a sum of consecutive naturals, for example, 5655 + ... + 10832.

It is an arithmetic number, because the mean of its divisors is an integer number (7122816).

Almost surely, 2^42684843 is an apocalyptic number.

42684843 is a deficient number, since it is larger than the sum of its proper divisors (14297685).

42684843 is a wasteful number, since it uses less digits than its factorization.

42684843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17353.

The product of its digits is 147456, while the sum is 39.

The square root of 42684843 is about 6533.3638349628. The cubic root of 42684843 is about 349.4817991304.

The spelling of 42684843 in words is "forty-two million, six hundred eighty-four thousand, eight hundred forty-three".