11331689 has 2 divisors, whose sum is σ = 11331690.
Its totient is φ = 11331688.
The previous prime is 11331679. The next prime is 11331701. The reversal of 11331689 is 98613311.
11331689 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 11323225 + 8464 = 3365^2 + 92^2
It is a cyclic number.
It is not a de Polignac number, because 11331689 - 216 = 11266153 is a prime.
It is not a weakly prime, because it can be changed into another prime (11331659) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5665844 + 5665845.
It is an arithmetic number, because the mean of its divisors is an integer number (5665845).
Almost surely, 211331689 is an apocalyptic number.
It is an amenable number.
11331689 is a deficient number, since it is larger than the sum of its proper divisors (1).
11331689 is an equidigital number, since it uses as much as digits as its factorization.
11331689 is an evil number, because the sum of its binary digits is even.
The product of its digits is 3888, while the sum is 32.
The square root of 11331689 is about 3366.2574173702.
The cubic root of 11331689 is about 224.6112728249.
The spelling of 11331689 in words is "eleven million, three hundred thirty-one thousand, six hundred eighty-nine".