10239985 has 16 divisors (see below), whose sum is σ = 14103936. Its totient is φ = 6991488.

The previous prime is 10239973. The next prime is 10239989. The reversal of 10239985 is 58993201.

10239985 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10239985 - 2⁵ = 10239953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10239989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10269 + ... + 11221.

It is an arithmetic number, because the mean of its divisors is an integer number (881496).

It is a Poulet number, since it divides 2^10239984-1.

Almost surely, 2^10239985 is an apocalyptic number.

It is an amenable number.

10239985 is a deficient number, since it is larger than the sum of its proper divisors (3863951).

10239985 is an equidigital number, since it uses as much as digits as its factorization.

10239985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 10239985 is about 3199.9976562491. The cubic root of 10239985 is about 217.1533032956.

The spelling of 10239985 in words is "ten million, two hundred thirty-nine thousand, nine hundred eighty-five".