11578986 has 24 divisors (see below), whose sum is σ = 25515360. Its totient is φ = 3793896.

The previous prime is 11578981. The next prime is 11579003. The reversal of 11578986 is 68987511.

11578986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11578981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4390 + ... + 6513.

It is an arithmetic number, because the mean of its divisors is an integer number (1063140).

Almost surely, 2^11578986 is an apocalyptic number.

11578986 is an abundant number, since it is smaller than the sum of its proper divisors (13936374).

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

11578986 is a wasteful number, since it uses less digits than its factorization.

11578986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10970 (or 10967 counting only the distinct ones).

The product of its digits is 120960, while the sum is 45.

The square root of 11578986 is about 3402.7909133533. The cubic root of 11578986 is about 226.2334627678.

The spelling of 11578986 in words is "eleven million, five hundred seventy-eight thousand, nine hundred eighty-six".