23163636 has 24 divisors (see below), whose sum is σ = 54966240. Its totient is φ = 7590112.

The previous prime is 23163631. The next prime is 23163649. The reversal of 23163636 is 63636132.

It is a nude number because it is divisible by every one of its digits.

23163636 is a modest number, since divided by 3636 gives 2316 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23163631) 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, 15651 + ... + 17066.

It is an arithmetic number, because the mean of its divisors is an integer number (2290260).

Almost surely, 2^23163636 is an apocalyptic number.

It is an amenable number.

23163636 is an abundant number, since it is smaller than the sum of its proper divisors (31802604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23163636 is a wasteful number, since it uses less digits than its factorization.

23163636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32783 (or 32781 counting only the distinct ones).

The product of its digits is 11664, while the sum is 30.

The square root of 23163636 is about 4812.8615188887. The cubic root of 23163636 is about 285.0595381922.

Adding to 23163636 its reverse (63636132), we get a palindrome (86799768).

The spelling of 23163636 in words is "twenty-three million, one hundred sixty-three thousand, six hundred thirty-six".