43697423 has 8 divisors (see below), whose sum is σ = 54480000. Its totient is φ = 34049880.

The previous prime is 43697413. The next prime is 43697443. The reversal of 43697423 is 32479634.

43697423 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 43697423 - 2¹⁰ = 43696399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43697413) 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, 283673 + ... + 283826.

It is an arithmetic number, because the mean of its divisors is an integer number (6810000).

Almost surely, 2^43697423 is an apocalyptic number.

43697423 is a deficient number, since it is larger than the sum of its proper divisors (10782577).

43697423 is a wasteful number, since it uses less digits than its factorization.

43697423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567517.

The product of its digits is 108864, while the sum is 38.

The square root of 43697423 is about 6610.4026352409. The cubic root of 43697423 is about 352.2237273262.

The spelling of 43697423 in words is "forty-three million, six hundred ninety-seven thousand, four hundred twenty-three".