23506919 has 2 divisors, whose sum is σ = 23506920. Its totient is φ = 23506918.

The previous prime is 23506891. The next prime is 23506921. The reversal of 23506919 is 91960532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23506919 - 2⁸ = 23506663 is a prime.

It is a super-2 number, since 2×23506919² = 1105150481745122, which contains 22 as substring.

Together with 23506921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23506979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11753459 + 11753460.

It is an arithmetic number, because the mean of its divisors is an integer number (11753460).

Almost surely, 2^23506919 is an apocalyptic number.

23506919 is a deficient number, since it is larger than the sum of its proper divisors (1).

23506919 is an equidigital number, since it uses as much as digits as its factorization.

23506919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 23506919 is about 4848.3934452559. The cubic root of 23506919 is about 286.4608240756.

The spelling of 23506919 in words is "twenty-three million, five hundred six thousand, nine hundred nineteen".