11966838 has 16 divisors (see below), whose sum is σ = 25774896. Its totient is φ = 3682080.

The previous prime is 11966833. The next prime is 11966863. The reversal of 11966838 is 83866911.

It is a self number, because there is not a number n which added to its sum of digits gives 11966838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11966833) 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, 76633 + ... + 76788.

It is an arithmetic number, because the mean of its divisors is an integer number (1610931).

Almost surely, 2^11966838 is an apocalyptic number.

11966838 is an abundant number, since it is smaller than the sum of its proper divisors (13808058).

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

11966838 is a wasteful number, since it uses less digits than its factorization.

11966838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153439.

The product of its digits is 62208, while the sum is 42.

The square root of 11966838 is about 3459.3117812652. The cubic root of 11966838 is about 228.7317594222.

The spelling of 11966838 in words is "eleven million, nine hundred sixty-six thousand, eight hundred thirty-eight".