11630989 has 2 divisors, whose sum is σ = 11630990. Its totient is φ = 11630988.

The previous prime is 11630947. The next prime is 11631013. The reversal of 11630989 is 98903611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8655364 + 2975625 = 2942^2 + 1725^2 .

It is a cyclic number.

It is not a de Polignac number, because 11630989 - 2⁹ = 11630477 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11630389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5815494 + 5815495.

It is an arithmetic number, because the mean of its divisors is an integer number (5815495).

Almost surely, 2^11630989 is an apocalyptic number.

It is an amenable number.

11630989 is a deficient number, since it is larger than the sum of its proper divisors (1).

11630989 is an equidigital number, since it uses as much as digits as its factorization.

11630989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 11630989 is about 3410.4235807301. The cubic root of 11630989 is about 226.5716400498.

The spelling of 11630989 in words is "eleven million, six hundred thirty thousand, nine hundred eighty-nine".