23872163 has 6 divisors (see below), whose sum is σ = 27769716. Its totient is φ = 20461812.

The previous prime is 23872157. The next prime is 23872169. The reversal of 23872163 is 36127832.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23872157) and next prime (23872169).

It is not a de Polignac number, because 23872163 - 2¹⁰ = 23871139 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23872169) 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 5 ways as a sum of consecutive naturals, for example, 243545 + ... + 243642.

It is an arithmetic number, because the mean of its divisors is an integer number (4628286).

Almost surely, 2^23872163 is an apocalyptic number.

23872163 is a deficient number, since it is larger than the sum of its proper divisors (3897553).

23872163 is an equidigital number, since it uses as much as digits as its factorization.

23872163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487201 (or 487194 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 23872163 is about 4885.9147557034. The cubic root of 23872163 is about 287.9368552086.

Adding to 23872163 its reverse (36127832), we get a palindrome (59999995).

The spelling of 23872163 in words is "twenty-three million, eight hundred seventy-two thousand, one hundred sixty-three".