23106921 has 8 divisors (see below), whose sum is σ = 30867744. Its totient is φ = 15375360.

The previous prime is 23106913. The next prime is 23106949. The reversal of 23106921 is 12960132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23106921 - 2³ = 23106913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23106891 and 23106900.

It is not an unprimeable number, because it can be changed into a prime (23106901) 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 7 ways as a sum of consecutive naturals, for example, 5400 + ... + 8681.

It is an arithmetic number, because the mean of its divisors is an integer number (3858468).

Almost surely, 2^23106921 is an apocalyptic number.

It is an amenable number.

23106921 is a deficient number, since it is larger than the sum of its proper divisors (7760823).

23106921 is a wasteful number, since it uses less digits than its factorization.

23106921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14631.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 23106921 is about 4806.9658829661. The cubic root of 23106921 is about 284.8266967318.

The spelling of 23106921 in words is "twenty-three million, one hundred six thousand, nine hundred twenty-one".