10866813 has 16 divisors (see below), whose sum is σ = 14817600. Its totient is φ = 7082496.

The previous prime is 10866799. The next prime is 10866827. The reversal of 10866813 is 31866801.

It is an interprime number because it is at equal distance from previous prime (10866799) and next prime (10866827).

It is not a de Polignac number, because 10866813 - 2⁹ = 10866301 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10866883) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 30963 + ... + 31311.

It is an arithmetic number, because the mean of its divisors is an integer number (926100).

Almost surely, 2^10866813 is an apocalyptic number.

It is an amenable number.

10866813 is a deficient number, since it is larger than the sum of its proper divisors (3950787).

10866813 is a wasteful number, since it uses less digits than its factorization.

10866813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 10866813 is about 3296.4849461206. The cubic root of 10866813 is about 221.4967702125.

The spelling of 10866813 in words is "ten million, eight hundred sixty-six thousand, eight hundred thirteen".