23958881 has 4 divisors (see below), whose sum is σ = 24106032. Its totient is φ = 23811732.

The previous prime is 23958871. The next prime is 23958887. The reversal of 23958881 is 18885932.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23958881 - 2⁶ = 23958817 is a prime.

It is a super-2 number, since 2×23958881² = 1148055957544322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23958887) 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, 73331 + ... + 73656.

It is an arithmetic number, because the mean of its divisors is an integer number (6026508).

Almost surely, 2^23958881 is an apocalyptic number.

It is an amenable number.

23958881 is a deficient number, since it is larger than the sum of its proper divisors (147151).

23958881 is a wasteful number, since it uses less digits than its factorization.

23958881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147150.

The product of its digits is 138240, while the sum is 44.

The square root of 23958881 is about 4894.7809961223. The cubic root of 23958881 is about 288.2850869486.

The spelling of 23958881 in words is "twenty-three million, nine hundred fifty-eight thousand, eight hundred eighty-one".