23685385 has 16 divisors (see below), whose sum is σ = 29283840. Its totient is φ = 18383040.

The previous prime is 23685379. The next prime is 23685391. The reversal of 23685385 is 58358632.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23685379) and next prime (23685391).

It is not a de Polignac number, because 23685385 - 2¹¹ = 23683337 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23604 + ... + 24586.

It is an arithmetic number, because the mean of its divisors is an integer number (1830240).

Almost surely, 2^23685385 is an apocalyptic number.

It is an amenable number.

23685385 is a deficient number, since it is larger than the sum of its proper divisors (5598455).

23685385 is an equidigital number, since it uses as much as digits as its factorization.

23685385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128.

The product of its digits is 172800, while the sum is 40.

The square root of 23685385 is about 4866.7632981274. The cubic root of 23685385 is about 287.1839400048.

The spelling of 23685385 in words is "twenty-three million, six hundred eighty-five thousand, three hundred eighty-five".