23173723 has 2 divisors, whose sum is σ = 23173724. Its totient is φ = 23173722.

The previous prime is 23173699. The next prime is 23173751. The reversal of 23173723 is 32737132.

It is an a-pointer prime, because the next prime (23173751) can be obtained adding 23173723 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23173723 - 2⁵ = 23173691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23173691 and 23173700.

It is not a weakly prime, because it can be changed into another prime (23173763) 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 as a sum of consecutive naturals, namely, 11586861 + 11586862.

It is an arithmetic number, because the mean of its divisors is an integer number (11586862).

Almost surely, 2^23173723 is an apocalyptic number.

23173723 is a deficient number, since it is larger than the sum of its proper divisors (1).

23173723 is an equidigital number, since it uses as much as digits as its factorization.

23173723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5292, while the sum is 28.

The square root of 23173723 is about 4813.9093261091. The cubic root of 23173723 is about 285.1009101985.

The spelling of 23173723 in words is "twenty-three million, one hundred seventy-three thousand, seven hundred twenty-three".