23640059 has 2 divisors, whose sum is σ = 23640060. Its totient is φ = 23640058.

The previous prime is 23640049. The next prime is 23640083. The reversal of 23640059 is 95004632.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23640059 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23640049) 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, 11820029 + 11820030.

It is an arithmetic number, because the mean of its divisors is an integer number (11820030).

Almost surely, 2^23640059 is an apocalyptic number.

23640059 is a deficient number, since it is larger than the sum of its proper divisors (1).

23640059 is an equidigital number, since it uses as much as digits as its factorization.

23640059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 23640059 is about 4862.1043797928. The cubic root of 23640059 is about 287.0006313041. Note that the first 3 decimals are identical.

The spelling of 23640059 in words is "twenty-three million, six hundred forty thousand, fifty-nine".