11710989 has 6 divisors (see below), whose sum is σ = 16915886. Its totient is φ = 7807320.

The previous prime is 11710987. The next prime is 11710999. The reversal of 11710989 is 98901711.

It can be written as a sum of positive squares in only one way, i.e., 11594025 + 116964 = 3405^2 + 342^2 .

It is not a de Polignac number, because 11710989 - 2¹ = 11710987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11710987) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 650602 + ... + 650619.

Almost surely, 2^11710989 is an apocalyptic number.

It is an amenable number.

11710989 is a deficient number, since it is larger than the sum of its proper divisors (5204897).

11710989 is a wasteful number, since it uses less digits than its factorization.

11710989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301227 (or 1301224 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 36.

The square root of 11710989 is about 3422.1322300577. The cubic root of 11710989 is about 227.0899201935.

The spelling of 11710989 in words is "eleven million, seven hundred ten thousand, nine hundred eighty-nine".