16823441 has 4 divisors (see below), whose sum is σ = 16936500. Its totient is φ = 16710384.

The previous prime is 16823399. The next prime is 16823447. The reversal of 16823441 is 14432861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14432861 = 41 ⋅352021.

It can be written as a sum of positive squares in 2 ways, for example, as 2572816 + 14250625 = 1604^2 + 3775^2 .

It is a cyclic number.

It is not a de Polignac number, because 16823441 - 2¹⁴ = 16807057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16823447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56306 + ... + 56603.

It is an arithmetic number, because the mean of its divisors is an integer number (4234125).

Almost surely, 2^16823441 is an apocalyptic number.

It is an amenable number.

16823441 is a deficient number, since it is larger than the sum of its proper divisors (113059).

16823441 is a wasteful number, since it uses less digits than its factorization.

16823441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113058.

The product of its digits is 4608, while the sum is 29.

The square root of 16823441 is about 4101.6388188138. The cubic root of 16823441 is about 256.2348969088.

The spelling of 16823441 in words is "sixteen million, eight hundred twenty-three thousand, four hundred forty-one".