10685866 has 8 divisors (see below), whose sum is σ = 16872480. Its totient is φ = 5061708.

The previous prime is 10685861. The next prime is 10685867. The reversal of 10685866 is 66858601.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10685866² = 228375464339912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10685861) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 140566 + ... + 140641.

It is an arithmetic number, because the mean of its divisors is an integer number (2109060).

Almost surely, 2^10685866 is an apocalyptic number.

10685866 is a deficient number, since it is larger than the sum of its proper divisors (6186614).

10685866 is a wasteful number, since it uses less digits than its factorization.

10685866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281228.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 10685866 is about 3268.9242878966. The cubic root of 10685866 is about 220.2604766020.

The spelling of 10685866 in words is "ten million, six hundred eighty-five thousand, eight hundred sixty-six".