16163923 has 4 divisors (see below), whose sum is σ = 17114760. Its totient is φ = 15213088.

The previous prime is 16163921. The next prime is 16163929. The reversal of 16163923 is 32936161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16163923 - 2¹ = 16163921 is a prime.

It is a super-2 number, since 2×16163923² = 522544813499858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16163921) 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 3 ways as a sum of consecutive naturals, for example, 475393 + ... + 475426.

It is an arithmetic number, because the mean of its divisors is an integer number (4278690).

Almost surely, 2^16163923 is an apocalyptic number.

16163923 is a deficient number, since it is larger than the sum of its proper divisors (950837).

16163923 is an equidigital number, since it uses as much as digits as its factorization.

16163923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950836.

The product of its digits is 5832, while the sum is 31.

The square root of 16163923 is about 4020.4381602010. The cubic root of 16163923 is about 252.8418296145.

The spelling of 16163923 in words is "sixteen million, one hundred sixty-three thousand, nine hundred twenty-three".