23985385 has 16 divisors (see below), whose sum is σ = 30618000. Its totient is φ = 17975296.

The previous prime is 23985373. The next prime is 23985431. The reversal of 23985385 is 58358932.

It can be written as a sum of positive squares in 8 ways, for example, as 63504 + 23921881 = 252^2 + 4891^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23985385 is a prime.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 22341 + ... + 23389.

It is an arithmetic number, because the mean of its divisors is an integer number (1913625).

Almost surely, 2^23985385 is an apocalyptic number.

It is an amenable number.

23985385 is a deficient number, since it is larger than the sum of its proper divisors (6632615).

23985385 is a wasteful number, since it uses less digits than its factorization.

23985385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340.

The product of its digits is 259200, while the sum is 43.

The square root of 23985385 is about 4897.4876212197. The cubic root of 23985385 is about 288.3913508460.

The spelling of 23985385 in words is "twenty-three million, nine hundred eighty-five thousand, three hundred eighty-five".