11979611 has 8 divisors (see below), whose sum is σ = 14496480. Its totient is φ = 9664128.

The previous prime is 11979599. The next prime is 11979631. The reversal of 11979611 is 11697911.

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

It is a cyclic number.

It is not a de Polignac number, because 11979611 - 2¹⁰ = 11978587 is a prime.

It is a super-2 number, since 2×11979611² = 287022159422642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11979631) 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, 50216 + ... + 50453.

It is an arithmetic number, because the mean of its divisors is an integer number (1812060).

Almost surely, 2^11979611 is an apocalyptic number.

11979611 is a deficient number, since it is larger than the sum of its proper divisors (2516869).

11979611 is a wasteful number, since it uses less digits than its factorization.

11979611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100693.

The product of its digits is 3402, while the sum is 35.

The square root of 11979611 is about 3461.1574653575. The cubic root of 11979611 is about 228.8131106784.

The spelling of 11979611 in words is "eleven million, nine hundred seventy-nine thousand, six hundred eleven".