10239685 has 4 divisors (see below), whose sum is σ = 12287628. Its totient is φ = 8191744.

The previous prime is 10239679. The next prime is 10239731. The reversal of 10239685 is 58693201.

10239685 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3448449 + 6791236 = 1857^2 + 2606^2 .

It is a cyclic number.

It is not a de Polignac number, because 10239685 - 2⁷ = 10239557 is a prime.

It is a super-2 number, since 2×10239685² = 209702297798450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10239685.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1023964 + ... + 1023973.

It is an arithmetic number, because the mean of its divisors is an integer number (3071907).

Almost surely, 2^10239685 is an apocalyptic number.

It is an amenable number.

10239685 is a deficient number, since it is larger than the sum of its proper divisors (2047943).

10239685 is an equidigital number, since it uses as much as digits as its factorization.

10239685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047942.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 10239685 is about 3199.9507808715. The cubic root of 10239685 is about 217.1511826341.

The spelling of 10239685 in words is "ten million, two hundred thirty-nine thousand, six hundred eighty-five".