11864859 has 8 divisors (see below), whose sum is σ = 15911952. Its totient is φ = 7863840.

The previous prime is 11864843. The next prime is 11864863. The reversal of 11864859 is 95846811.

11864859 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11864859 - 2⁴ = 11864843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11864859.

It is not an unprimeable number, because it can be changed into a prime (11864819) 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, 10912 + ... + 11949.

It is an arithmetic number, because the mean of its divisors is an integer number (1988994).

Almost surely, 2^11864859 is an apocalyptic number.

11864859 is a deficient number, since it is larger than the sum of its proper divisors (4047093).

11864859 is a wasteful number, since it uses less digits than its factorization.

11864859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23037.

The product of its digits is 69120, while the sum is 42.

The square root of 11864859 is about 3444.5404628194. The cubic root of 11864859 is about 228.0801695606.

The spelling of 11864859 in words is "eleven million, eight hundred sixty-four thousand, eight hundred fifty-nine".