11686642 has 16 divisors (see below), whose sum is σ = 19180800. Its totient is φ = 5296240.

The previous prime is 11686637. The next prime is 11686663. The reversal of 11686642 is 24668611.

11686642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11686598 and 11686607.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9984 + ... + 11092.

It is an arithmetic number, because the mean of its divisors is an integer number (1198800).

Almost surely, 2^11686642 is an apocalyptic number.

11686642 is a deficient number, since it is larger than the sum of its proper divisors (7494158).

11686642 is a wasteful number, since it uses less digits than its factorization.

11686642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601.

The product of its digits is 13824, while the sum is 34.

The square root of 11686642 is about 3418.5730941432. The cubic root of 11686642 is about 226.9324386388.

The spelling of 11686642 in words is "eleven million, six hundred eighty-six thousand, six hundred forty-two".