16623043 has 8 divisors (see below), whose sum is σ = 18259200. Its totient is φ = 15063048.

The previous prime is 16623031. The next prime is 16623071. The reversal of 16623043 is 34032661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16623043 - 2⁵ = 16623011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16622999 and 16623017.

It is not an unprimeable number, because it can be changed into a prime (16623143) 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, 18583 + ... + 19456.

It is an arithmetic number, because the mean of its divisors is an integer number (2282400).

Almost surely, 2^16623043 is an apocalyptic number.

16623043 is a deficient number, since it is larger than the sum of its proper divisors (1636157).

16623043 is a wasteful number, since it uses less digits than its factorization.

16623043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38081.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 16623043 is about 4077.1366177748. The cubic root of 16623043 is about 255.2134212256.

The spelling of 16623043 in words is "sixteen million, six hundred twenty-three thousand, forty-three".