23216033 has 8 divisors (see below), whose sum is σ = 24624648. Its totient is φ = 21812224.

The previous prime is 23216027. The next prime is 23216041. The reversal of 23216033 is 33061232.

It can be written as a sum of positive squares in 4 ways, for example, as 9138529 + 14077504 = 3023^2 + 3752^2 .

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

It is not a de Polignac number, because 23216033 - 2¹⁰ = 23215009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23215996 and 23216014.

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, 15485 + ... + 16917.

It is an arithmetic number, because the mean of its divisors is an integer number (3078081).

Almost surely, 2^23216033 is an apocalyptic number.

It is an amenable number.

23216033 is a deficient number, since it is larger than the sum of its proper divisors (1408615).

23216033 is a wasteful number, since it uses less digits than its factorization.

23216033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 23216033 is about 4818.3018792932. The cubic root of 23216033 is about 285.2743147300.

Adding to 23216033 its reverse (33061232), we get a palindrome (56277265).

The spelling of 23216033 in words is "twenty-three million, two hundred sixteen thousand, thirty-three".