11630665 has 4 divisors (see below), whose sum is σ = 13956804. Its totient is φ = 9304528.

The previous prime is 11630639. The next prime is 11630677. The reversal of 11630665 is 56603611.

11630665 = 2411² + 2412².

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 5817744 + 5812921 = 2412^2 + 2411^2 .

It is a cyclic number.

It is not a de Polignac number, because 11630665 - 2⁹ = 11630153 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1163062 + ... + 1163071.

It is an arithmetic number, because the mean of its divisors is an integer number (3489201).

Almost surely, 2^11630665 is an apocalyptic number.

11630665 is the 2412-nd centered square number.

It is an amenable number.

11630665 is a deficient number, since it is larger than the sum of its proper divisors (2326139).

11630665 is an equidigital number, since it uses as much as digits as its factorization.

11630665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326138.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 11630665 is about 3410.3760789684. The cubic root of 11630665 is about 226.5695361905.

The spelling of 11630665 in words is "eleven million, six hundred thirty thousand, six hundred sixty-five".