11930665 has 4 divisors (see below), whose sum is σ = 14316804. Its totient is φ = 9544528.

The previous prime is 11930663. The next prime is 11930683. The reversal of 11930665 is 56603911.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6859161 + 5071504 = 2619^2 + 2252^2 .

It is a cyclic number.

It is not a de Polignac number, because 11930665 - 2¹ = 11930663 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11930663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1193062 + ... + 1193071.

It is an arithmetic number, because the mean of its divisors is an integer number (3579201).

Almost surely, 2^11930665 is an apocalyptic number.

It is an amenable number.

11930665 is a deficient number, since it is larger than the sum of its proper divisors (2386139).

11930665 is an equidigital number, since it uses as much as digits as its factorization.

11930665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2386138.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 11930665 is about 3454.0794721604. The cubic root of 11930665 is about 228.5010589739.

The spelling of 11930665 in words is "eleven million, nine hundred thirty thousand, six hundred sixty-five".