23216733 has 32 divisors (see below), whose sum is σ = 36000000. Its totient is φ = 14769216.

The previous prime is 23216717. The next prime is 23216741. The reversal of 23216733 is 33761232.

It is not a de Polignac number, because 23216733 - 2⁴ = 23216717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23216697 and 23216706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23216933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116568 + ... + 116766.

It is an arithmetic number, because the mean of its divisors is an integer number (1125000).

Almost surely, 2^23216733 is an apocalyptic number.

It is an amenable number.

23216733 is a deficient number, since it is larger than the sum of its proper divisors (12783267).

23216733 is a wasteful number, since it uses less digits than its factorization.

23216733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 380 counting only the distinct ones).

The product of its digits is 4536, while the sum is 27.

The square root of 23216733 is about 4818.3745184450. The cubic root of 23216733 is about 285.2771818580.

Adding to 23216733 its reverse (33761232), we get a palindrome (56977965).

The spelling of 23216733 in words is "twenty-three million, two hundred sixteen thousand, seven hundred thirty-three".