11669947 has 8 divisors (see below), whose sum is σ = 12316320. Its totient is φ = 11035200.

The previous prime is 11669941. The next prime is 11669951. The reversal of 11669947 is 74996611.

It is a happy number.

11669947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11669947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11669941) 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, 804 + ... + 4897.

It is an arithmetic number, because the mean of its divisors is an integer number (1539540).

Almost surely, 2^11669947 is an apocalyptic number.

11669947 is a deficient number, since it is larger than the sum of its proper divisors (646373).

11669947 is an equidigital number, since it uses as much as digits as its factorization.

11669947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5813.

The product of its digits is 81648, while the sum is 43.

The square root of 11669947 is about 3416.1304132015. The cubic root of 11669947 is about 226.8243253876.

The spelling of 11669947 in words is "eleven million, six hundred sixty-nine thousand, nine hundred forty-seven".