11911946 has 8 divisors (see below), whose sum is σ = 18283584. Its totient is φ = 5817420.

The previous prime is 11911931. The next prime is 11911969. The reversal of 11911946 is 64911911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69170 + ... + 69341.

It is an arithmetic number, because the mean of its divisors is an integer number (2285448).

Almost surely, 2^11911946 is an apocalyptic number.

11911946 is a deficient number, since it is larger than the sum of its proper divisors (6371638).

11911946 is a wasteful number, since it uses less digits than its factorization.

11911946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138556.

The product of its digits is 1944, while the sum is 32.

The square root of 11911946 is about 3451.3687140032. The cubic root of 11911946 is about 228.3814917276.

The spelling of 11911946 in words is "eleven million, nine hundred eleven thousand, nine hundred forty-six".