11996611 has 8 divisors (see below), whose sum is σ = 13857264. Its totient is φ = 10264320.

The previous prime is 11996599. The next prime is 11996617. The reversal of 11996611 is 11669911.

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

It is not a de Polignac number, because 11996611 - 2⁹ = 11996099 is a prime.

11996611 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11996617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31890 + ... + 32263.

It is an arithmetic number, because the mean of its divisors is an integer number (1732158).

Almost surely, 2^11996611 is an apocalyptic number.

11996611 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11996611 is a deficient number, since it is larger than the sum of its proper divisors (1860653).

11996611 is a wasteful number, since it uses less digits than its factorization.

11996611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64181.

The product of its digits is 2916, while the sum is 34.

The square root of 11996611 is about 3463.6124205806. The cubic root of 11996611 is about 228.9212940560.

It can be divided in two parts, 11 and 996611, that multiplied together give a square (10962721 = 3311²).

The spelling of 11996611 in words is "eleven million, nine hundred ninety-six thousand, six hundred eleven".