16623983 has 8 divisors (see below), whose sum is σ = 17157840. Its totient is φ = 16096320.

The previous prime is 16623961. The next prime is 16624001. The reversal of 16623983 is 38932661.

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 16623983 - 2¹⁰ = 16622959 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 (16623913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4241 + ... + 7157.

It is an arithmetic number, because the mean of its divisors is an integer number (2144730).

Almost surely, 2^16623983 is an apocalyptic number.

16623983 is a deficient number, since it is larger than the sum of its proper divisors (533857).

16623983 is a wasteful number, since it uses less digits than its factorization.

16623983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3097.

The product of its digits is 46656, while the sum is 38.

The square root of 16623983 is about 4077.2518931261. The cubic root of 16623983 is about 255.2182317386.

The spelling of 16623983 in words is "sixteen million, six hundred twenty-three thousand, nine hundred eighty-three".