10947865 has 4 divisors (see below), whose sum is σ = 13137444. Its totient is φ = 8758288.

The previous prime is 10947841. The next prime is 10947889. The reversal of 10947865 is 56874901.

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

It is an interprime number because it is at equal distance from previous prime (10947841) and next prime (10947889).

It can be written as a sum of positive squares in 2 ways, for example, as 2374681 + 8573184 = 1541^2 + 2928^2 .

It is a cyclic number.

It is not a de Polignac number, because 10947865 - 2⁹ = 10947353 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1094782 + ... + 1094791.

It is an arithmetic number, because the mean of its divisors is an integer number (3284361).

Almost surely, 2^10947865 is an apocalyptic number.

It is an amenable number.

10947865 is a deficient number, since it is larger than the sum of its proper divisors (2189579).

10947865 is an equidigital number, since it uses as much as digits as its factorization.

10947865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189578.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 10947865 is about 3308.7558084573. The cubic root of 10947865 is about 222.0460973452.

It can be divided in two parts, 109 and 47865, that added together give a palindrome (47974).

The spelling of 10947865 in words is "ten million, nine hundred forty-seven thousand, eight hundred sixty-five".