10646 has 4 divisors (see below), whose sum is σ = 15972. Its totient is φ = 5322.

The previous prime is 10639. The next prime is 10651. The reversal of 10646 is 64601.

10646 is digitally balanced in base 2, 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 is a super-2 number, since 2×10646² = 226674632, which contains 22 as substring.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

10646 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2660 + ... + 2663.

It is an arithmetic number, because the mean of its divisors is an integer number (3993).

2¹⁰⁶⁴⁶ is an apocalyptic number.

10646 is a deficient number, since it is larger than the sum of its proper divisors (5326).

10646 is an equidigital number, since it uses as much as digits as its factorization.

10646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5325.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 10646 is about 103.1794553194. The cubic root of 10646 is about 21.9986225033.

It can be divided in two parts, 10 and 646, that added together give a palindrome (656).

The spelling of 10646 in words is "ten thousand, six hundred forty-six".