43423985 has 8 divisors (see below), whose sum is σ = 56846016. Its totient is φ = 31581040.

The previous prime is 43423969. The next prime is 43423999. The reversal of 43423985 is 58932434.

43423985 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 not a de Polignac number, because 43423985 - 2⁴ = 43423969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 394709 + ... + 394818.

It is an arithmetic number, because the mean of its divisors is an integer number (7105752).

Almost surely, 2^43423985 is an apocalyptic number.

It is an amenable number.

43423985 is a deficient number, since it is larger than the sum of its proper divisors (13422031).

43423985 is a wasteful number, since it uses less digits than its factorization.

43423985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789543.

The product of its digits is 103680, while the sum is 38.

The square root of 43423985 is about 6589.6877771257. The cubic root of 43423985 is about 351.4875058538.

The spelling of 43423985 in words is "forty-three million, four hundred twenty-three thousand, nine hundred eighty-five".