23913691 has 2 divisors, whose sum is σ = 23913692. Its totient is φ = 23913690.

The previous prime is 23913689. The next prime is 23913727. The reversal of 23913691 is 19631932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23913691 - 2¹ = 23913689 is a prime.

Together with 23913689, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23913601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11956845 + 11956846.

It is an arithmetic number, because the mean of its divisors is an integer number (11956846).

Almost surely, 2^23913691 is an apocalyptic number.

23913691 is a deficient number, since it is larger than the sum of its proper divisors (1).

23913691 is an equidigital number, since it uses as much as digits as its factorization.

23913691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748, while the sum is 34.

The square root of 23913691 is about 4890.1626762307. The cubic root of 23913691 is about 288.1037234098.

The spelling of 23913691 in words is "twenty-three million, nine hundred thirteen thousand, six hundred ninety-one".