23785313 has 2 divisors, whose sum is σ = 23785314. Its totient is φ = 23785312.

The previous prime is 23785297. The next prime is 23785331. The reversal of 23785313 is 31358732.

Together with next prime (23785331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20729809 + 3055504 = 4553^2 + 1748^2 .

It is a cyclic number.

It is not a de Polignac number, because 23785313 - 2⁴ = 23785297 is a prime.

It is a super-2 number, since 2×23785313² = 1131482229015938, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23785313.

It is not a weakly prime, because it can be changed into another prime (23785613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11892656 + 11892657.

It is an arithmetic number, because the mean of its divisors is an integer number (11892657).

Almost surely, 2^23785313 is an apocalyptic number.

It is an amenable number.

23785313 is a deficient number, since it is larger than the sum of its proper divisors (1).

23785313 is an equidigital number, since it uses as much as digits as its factorization.

23785313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 32.

The square root of 23785313 is about 4877.0188640193. The cubic root of 23785313 is about 287.5872471186.

The spelling of 23785313 in words is "twenty-three million, seven hundred eighty-five thousand, three hundred thirteen".