23538787 has 2 divisors, whose sum is σ = 23538788. Its totient is φ = 23538786.

The previous prime is 23538773. The next prime is 23538791. The reversal of 23538787 is 78783532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23538787 - 2¹⁹ = 23014499 is a prime.

It is not a weakly prime, because it can be changed into another prime (23538737) 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, 11769393 + 11769394.

It is an arithmetic number, because the mean of its divisors is an integer number (11769394).

Almost surely, 2^23538787 is an apocalyptic number.

23538787 is a deficient number, since it is larger than the sum of its proper divisors (1).

23538787 is an equidigital number, since it uses as much as digits as its factorization.

23538787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 43.

The square root of 23538787 is about 4851.6787816178. The cubic root of 23538787 is about 286.5902159272.

The spelling of 23538787 in words is "twenty-three million, five hundred thirty-eight thousand, seven hundred eighty-seven".