10866643 has 4 divisors (see below), whose sum is σ = 11071728. Its totient is φ = 10661560.

The previous prime is 10866631. The next prime is 10866671. The reversal of 10866643 is 34666801.

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

It is a cyclic number.

It is not a de Polignac number, because 10866643 - 2⁹ = 10866131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10866599 and 10866608.

It is not an unprimeable number, because it can be changed into a prime (10866683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102463 + ... + 102568.

It is an arithmetic number, because the mean of its divisors is an integer number (2767932).

Almost surely, 2^10866643 is an apocalyptic number.

10866643 is a deficient number, since it is larger than the sum of its proper divisors (205085).

10866643 is an equidigital number, since it uses as much as digits as its factorization.

10866643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205084.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 10866643 is about 3296.4591609786. The cubic root of 10866643 is about 221.4956151775.

The spelling of 10866643 in words is "ten million, eight hundred sixty-six thousand, six hundred forty-three".