11864 has 8 divisors (see below), whose sum is σ = 22260. Its totient is φ = 5928.

The previous prime is 11863. The next prime is 11867. The reversal of 11864 is 46811.

11864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 734 + ... + 749.

2¹¹⁸⁶⁴ is an apocalyptic number.

It is an amenable number.

11864 is a deficient number, since it is larger than the sum of its proper divisors (10396).

11864 is a wasteful number, since it uses less digits than its factorization.

11864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489 (or 1485 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

The square root of 11864 is about 108.9219904335. The cubic root of 11864 is about 22.8074665194.

The spelling of 11864 in words is "eleven thousand, eight hundred sixty-four".