10646686 has 4 divisors (see below), whose sum is σ = 15970032. Its totient is φ = 5323342.

The previous prime is 10646653. The next prime is 10646687. The reversal of 10646686 is 68664601.

10646686 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, and also an emirpimes, since its reverse is a distinct semiprime: 68664601 = 1259 ⋅54539.

It is a super-2 number, since 2×10646686² = 226703845565192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10646687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2661670 + ... + 2661673.

It is an arithmetic number, because the mean of its divisors is an integer number (3992508).

Almost surely, 2^10646686 is an apocalyptic number.

10646686 is a deficient number, since it is larger than the sum of its proper divisors (5323346).

10646686 is an equidigital number, since it uses as much as digits as its factorization.

10646686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5323345.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 10646686 is about 3262.9259875149. The cubic root of 10646686 is about 219.9909500409.

It can be divided in two parts, 1064 and 6686, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 10646686 in words is "ten million, six hundred forty-six thousand, six hundred eighty-six".