11669961 has 8 divisors (see below), whose sum is σ = 15578560. Its totient is φ = 7770672.

The previous prime is 11669951. The next prime is 11669963. The reversal of 11669961 is 16996611.

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

It is not a de Polignac number, because 11669961 - 2⁵ = 11669929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11669963) 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, 1500 + ... + 5058.

It is an arithmetic number, because the mean of its divisors is an integer number (1947320).

Almost surely, 2^11669961 is an apocalyptic number.

It is an amenable number.

11669961 is a deficient number, since it is larger than the sum of its proper divisors (3908599).

11669961 is a wasteful number, since it uses less digits than its factorization.

11669961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4655.

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

The square root of 11669961 is about 3416.1324623029. The cubic root of 11669961 is about 226.8244160918.

The spelling of 11669961 in words is "eleven million, six hundred sixty-nine thousand, nine hundred sixty-one".