23838691 has 2 divisors, whose sum is σ = 23838692. Its totient is φ = 23838690.

The previous prime is 23838653. The next prime is 23838697. The reversal of 23838691 is 19683832.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23838691 is a prime.

It is not a weakly prime, because it can be changed into another prime (23838697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11919345 + 11919346.

It is an arithmetic number, because the mean of its divisors is an integer number (11919346).

Almost surely, 2^23838691 is an apocalyptic number.

23838691 is a deficient number, since it is larger than the sum of its proper divisors (1).

23838691 is an equidigital number, since it uses as much as digits as its factorization.

23838691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 23838691 is about 4882.4881976304. The cubic root of 23838691 is about 287.8022167953.

The spelling of 23838691 in words is "twenty-three million, eight hundred thirty-eight thousand, six hundred ninety-one".