11729689 has 2 divisors, whose sum is σ = 11729690. Its totient is φ = 11729688.

The previous prime is 11729681. The next prime is 11729699. The reversal of 11729689 is 98692711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9455625 + 2274064 = 3075^2 + 1508^2 .

It is a cyclic number.

It is not a de Polignac number, because 11729689 - 2³ = 11729681 is a prime.

It is not a weakly prime, because it can be changed into another prime (11729681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5864844 + 5864845.

It is an arithmetic number, because the mean of its divisors is an integer number (5864845).

Almost surely, 2^11729689 is an apocalyptic number.

It is an amenable number.

11729689 is a deficient number, since it is larger than the sum of its proper divisors (1).

11729689 is an equidigital number, since it uses as much as digits as its factorization.

11729689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 43.

The square root of 11729689 is about 3424.8633549384. The cubic root of 11729689 is about 227.2107276166.

The spelling of 11729689 in words is "eleven million, seven hundred twenty-nine thousand, six hundred eighty-nine".