23416403 has 4 divisors (see below), whose sum is σ = 23426088. Its totient is φ = 23406720.

The previous prime is 23416399. The next prime is 23416411. The reversal of 23416403 is 30461432.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23416403 - 2² = 23416399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23416423) 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, 2168 + ... + 7178.

It is an arithmetic number, because the mean of its divisors is an integer number (5856522).

Almost surely, 2^23416403 is an apocalyptic number.

23416403 is a deficient number, since it is larger than the sum of its proper divisors (9685).

23416403 is an equidigital number, since it uses as much as digits as its factorization.

23416403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9684.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 23416403 is about 4839.0498034222. The cubic root of 23416403 is about 286.0926680654.

Adding to 23416403 its reverse (30461432), we get a palindrome (53877835).

The spelling of 23416403 in words is "twenty-three million, four hundred sixteen thousand, four hundred three".