23882161 has 4 divisors (see below), whose sum is σ = 25287012. Its totient is φ = 22477312.

The previous prime is 23882153. The next prime is 23882203. The reversal of 23882161 is 16128832.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11771761 + 12110400 = 3431^2 + 3480^2 .

It is a cyclic number.

It is not a de Polignac number, because 23882161 - 2³ = 23882153 is a prime.

It is a super-2 number, since 2×23882161² = 1140715228059842, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (23882101) 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 3 ways as a sum of consecutive naturals, for example, 702400 + ... + 702433.

It is an arithmetic number, because the mean of its divisors is an integer number (6321753).

Almost surely, 2^23882161 is an apocalyptic number.

It is an amenable number.

23882161 is a deficient number, since it is larger than the sum of its proper divisors (1404851).

23882161 is a wasteful number, since it uses less digits than its factorization.

23882161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404850.

The product of its digits is 4608, while the sum is 31.

The square root of 23882161 is about 4886.9377937518. The cubic root of 23882161 is about 287.9770469426.

The spelling of 23882161 in words is "twenty-three million, eight hundred eighty-two thousand, one hundred sixty-one".