16443023 has 8 divisors (see below), whose sum is σ = 16693248. Its totient is φ = 16194744.

The previous prime is 16443013. The next prime is 16443041. The reversal of 16443023 is 32034461.

It is a happy number.

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 16443023 - 2¹² = 16438927 is a prime.

It is a super-3 number, since 3×16443023³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16443023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16443013) 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, 26786 + ... + 27392.

It is an arithmetic number, because the mean of its divisors is an integer number (2086656).

Almost surely, 2^16443023 is an apocalyptic number.

16443023 is a deficient number, since it is larger than the sum of its proper divisors (250225).

16443023 is a wasteful number, since it uses less digits than its factorization.

16443023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 16443023 is about 4054.9997533909. Note that the first 3 decimals coincide. The cubic root of 16443023 is about 254.2887936005.

Adding to 16443023 its reverse (32034461), we get a palindrome (48477484).

The spelling of 16443023 in words is "sixteen million, four hundred forty-three thousand, twenty-three".