11707889 has 4 divisors (see below), whose sum is σ = 11720100. Its totient is φ = 11695680.

The previous prime is 11707877. The next prime is 11707931. The reversal of 11707889 is 98870711.

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 4906225 + 6801664 = 2215^2 + 2608^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11707889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11707489) 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 in 3 ways as a sum of consecutive naturals, for example, 4532 + ... + 6629.

It is an arithmetic number, because the mean of its divisors is an integer number (2930025).

Almost surely, 2^11707889 is an apocalyptic number.

It is an amenable number.

11707889 is a deficient number, since it is larger than the sum of its proper divisors (12211).

11707889 is a wasteful number, since it uses less digits than its factorization.

11707889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12210.

The product of its (nonzero) digits is 28224, while the sum is 41.

The square root of 11707889 is about 3421.6792660914. The cubic root of 11707889 is about 227.0698808704.

The spelling of 11707889 in words is "eleven million, seven hundred seven thousand, eight hundred eighty-nine".