11678864 has 20 divisors (see below), whose sum is σ = 23959404. Its totient is φ = 5495808.

The previous prime is 11678857. The next prime is 11678867. The reversal of 11678864 is 46887611.

It can be written as a sum of positive squares in 2 ways, for example, as 3268864 + 8410000 = 1808^2 + 2900^2 .

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (11678867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21197 + ... + 21740.

Almost surely, 2^11678864 is an apocalyptic number.

It is an amenable number.

11678864 is an abundant number, since it is smaller than the sum of its proper divisors (12280540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11678864 is a wasteful number, since it uses less digits than its factorization.

11678864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42962 (or 42956 counting only the distinct ones).

The product of its digits is 64512, while the sum is 41.

The square root of 11678864 is about 3417.4352956567. The cubic root of 11678864 is about 226.8820827928.

The spelling of 11678864 in words is "eleven million, six hundred seventy-eight thousand, eight hundred sixty-four".