43117423 has 8 divisors (see below), whose sum is σ = 46403280. Its totient is φ = 39914880.

The previous prime is 43117397. The next prime is 43117427. The reversal of 43117423 is 32471134.

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 43117423 - 2²¹ = 41020271 is a prime.

It is a super-2 number, since 2×43117423² = 3718224332321858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43117427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19753 + ... + 21826.

It is an arithmetic number, because the mean of its divisors is an integer number (5800410).

Almost surely, 2^43117423 is an apocalyptic number.

43117423 is a deficient number, since it is larger than the sum of its proper divisors (3285857).

43117423 is a wasteful number, since it uses less digits than its factorization.

43117423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41657.

The product of its digits is 2016, while the sum is 25.

The square root of 43117423 is about 6566.3858400188. The cubic root of 43117423 is about 350.6584150440.

Adding to 43117423 its reverse (32471134), we get a palindrome (75588557).

The spelling of 43117423 in words is "forty-three million, one hundred seventeen thousand, four hundred twenty-three".