11669691 has 8 divisors (see below), whose sum is σ = 16974144. Its totient is φ = 7072520.

The previous prime is 11669663. The next prime is 11669711. The reversal of 11669691 is 19696611.

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 11669691 - 2¹⁰ = 11668667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11669491) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 176781 + ... + 176846.

It is an arithmetic number, because the mean of its divisors is an integer number (2121768).

Almost surely, 2^11669691 is an apocalyptic number.

11669691 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11669691 is a deficient number, since it is larger than the sum of its proper divisors (5304453).

11669691 is a wasteful number, since it uses less digits than its factorization.

11669691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353641.

The product of its digits is 17496, while the sum is 39.

The square root of 11669691 is about 3416.0929437004. The cubic root of 11669691 is about 226.8226667839.

The spelling of 11669691 in words is "eleven million, six hundred sixty-nine thousand, six hundred ninety-one".