16823401 has 4 divisors (see below), whose sum is σ = 19226752. Its totient is φ = 14420052.

The previous prime is 16823399. The next prime is 16823447. The reversal of 16823401 is 10432861.

16823401 is nontrivially palindromic in base 6.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16823401 - 2¹ = 16823399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16823461) 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, 1201665 + ... + 1201678.

It is an arithmetic number, because the mean of its divisors is an integer number (4806688).

Almost surely, 2^16823401 is an apocalyptic number.

It is an amenable number.

16823401 is a deficient number, since it is larger than the sum of its proper divisors (2403351).

16823401 is an equidigital number, since it uses as much as digits as its factorization.

16823401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403350.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 16823401 is about 4101.6339427111. The cubic root of 16823401 is about 256.2346938310.

The spelling of 16823401 in words is "sixteen million, eight hundred twenty-three thousand, four hundred one".