10813865 has 8 divisors (see below), whose sum is σ = 13063488. Its totient is φ = 8593200.

The previous prime is 10813861. The next prime is 10813877. The reversal of 10813865 is 56831801.

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

It is not a de Polignac number, because 10813865 - 2² = 10813861 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10813861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6407 + ... + 7916.

It is an arithmetic number, because the mean of its divisors is an integer number (1632936).

Almost surely, 2^10813865 is an apocalyptic number.

It is an amenable number.

10813865 is a deficient number, since it is larger than the sum of its proper divisors (2249623).

10813865 is a wasteful number, since it uses less digits than its factorization.

10813865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14479.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 10813865 is about 3288.4441609977. Note that the first 3 decimals coincide. The cubic root of 10813865 is about 221.1364403886.

The spelling of 10813865 in words is "ten million, eight hundred thirteen thousand, eight hundred sixty-five".