11847865 has 8 divisors (see below), whose sum is σ = 14236488. Its totient is φ = 9465600.

The previous prime is 11847853. The next prime is 11847877. The reversal of 11847865 is 56874811.

11847865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11847853) and next prime (11847877).

It can be written as a sum of positive squares in 4 ways, for example, as 477481 + 11370384 = 691^2 + 3372^2 .

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

It is not a de Polignac number, because 11847865 - 2¹¹ = 11845817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5019 + ... + 6991.

It is an arithmetic number, because the mean of its divisors is an integer number (1779561).

Almost surely, 2^11847865 is an apocalyptic number.

It is an amenable number.

11847865 is a deficient number, since it is larger than the sum of its proper divisors (2388623).

11847865 is a wasteful number, since it uses less digits than its factorization.

11847865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3179.

The product of its digits is 53760, while the sum is 40.

The square root of 11847865 is about 3442.0727766856. The cubic root of 11847865 is about 227.9712246952.

The spelling of 11847865 in words is "eleven million, eight hundred forty-seven thousand, eight hundred sixty-five".