23216005 has 8 divisors (see below), whose sum is σ = 29325600. Its totient is φ = 17595216.

The previous prime is 23216003. The next prime is 23216023. The reversal of 23216005 is 50061232.

It is a happy number.

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

It is not a de Polignac number, because 23216005 - 2¹ = 23216003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23216003) 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 7 ways as a sum of consecutive naturals, for example, 122095 + ... + 122284.

It is an arithmetic number, because the mean of its divisors is an integer number (3665700).

Almost surely, 2^23216005 is an apocalyptic number.

It is an amenable number.

23216005 is a deficient number, since it is larger than the sum of its proper divisors (6109595).

23216005 is a wasteful number, since it uses less digits than its factorization.

23216005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244403.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 23216005 is about 4818.2989737043. The cubic root of 23216005 is about 285.2742000437.

Adding to 23216005 its reverse (50061232), we get a palindrome (73277237).

The spelling of 23216005 in words is "twenty-three million, two hundred sixteen thousand, five".