23109893 has 2 divisors, whose sum is σ = 23109894. Its totient is φ = 23109892.

The previous prime is 23109883. The next prime is 23109913. The reversal of 23109893 is 39890132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18645124 + 4464769 = 4318^2 + 2113^2 .

It is a cyclic number.

It is not a de Polignac number, because 23109893 - 2⁸ = 23109637 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23109883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11554946 + 11554947.

It is an arithmetic number, because the mean of its divisors is an integer number (11554947).

Almost surely, 2^23109893 is an apocalyptic number.

It is an amenable number.

23109893 is a deficient number, since it is larger than the sum of its proper divisors (1).

23109893 is an equidigital number, since it uses as much as digits as its factorization.

23109893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 23109893 is about 4807.2750077357. The cubic root of 23109893 is about 284.8389076281.

The spelling of 23109893 in words is "twenty-three million, one hundred nine thousand, eight hundred ninety-three".