11862865 has 16 divisors (see below), whose sum is σ = 16495488. Its totient is φ = 8021376.

The previous prime is 11862857. The next prime is 11862869. The reversal of 11862865 is 56826811.

11862865 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11862865 - 2³ = 11862857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11862869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234 + ... + 4876.

It is an arithmetic number, because the mean of its divisors is an integer number (1030968).

Almost surely, 2^11862865 is an apocalyptic number.

It is an amenable number.

11862865 is a deficient number, since it is larger than the sum of its proper divisors (4632623).

11862865 is an equidigital number, since it uses as much as digits as its factorization.

11862865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4728.

The product of its digits is 23040, while the sum is 37.

The square root of 11862865 is about 3444.2510071132. The cubic root of 11862865 is about 228.0673918462.

The spelling of 11862865 in words is "eleven million, eight hundred sixty-two thousand, eight hundred sixty-five".