43664093 has 8 divisors (see below), whose sum is σ = 47770560. Its totient is φ = 39580480.

The previous prime is 43664063. The next prime is 43664099. The reversal of 43664093 is 39046634.

It is a happy number.

43664093 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 43664093 - 2¹⁰ = 43663069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43664099) 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, 1580 + ... + 9477.

It is an arithmetic number, because the mean of its divisors is an integer number (5971320).

Almost surely, 2^43664093 is an apocalyptic number.

It is an amenable number.

43664093 is a deficient number, since it is larger than the sum of its proper divisors (4106467).

43664093 is a wasteful number, since it uses less digits than its factorization.

43664093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11427.

The product of its (nonzero) digits is 46656, while the sum is 35.

The square root of 43664093 is about 6607.8811278654. The cubic root of 43664093 is about 352.1341522279.

The spelling of 43664093 in words is "forty-three million, six hundred sixty-four thousand, ninety-three".