11986654 has 4 divisors (see below), whose sum is σ = 17979984. Its totient is φ = 5993326.

The previous prime is 11986643. The next prime is 11986661. The reversal of 11986654 is 45668911.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2996662 + ... + 2996665.

It is an arithmetic number, because the mean of its divisors is an integer number (4494996).

Almost surely, 2^11986654 is an apocalyptic number.

11986654 is a deficient number, since it is larger than the sum of its proper divisors (5993330).

11986654 is an equidigital number, since it uses as much as digits as its factorization.

11986654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5993329.

The product of its digits is 51840, while the sum is 40.

The square root of 11986654 is about 3462.1747500668. The cubic root of 11986654 is about 228.8579428249.

The spelling of 11986654 in words is "eleven million, nine hundred eighty-six thousand, six hundred fifty-four".