11729405 has 8 divisors (see below), whose sum is σ = 14903352. Its totient is φ = 8831488.

The previous prime is 11729401. The next prime is 11729423. The reversal of 11729405 is 50492711.

11729405 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 148996 + 11580409 = 386^2 + 3403^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11729405 - 2² = 11729401 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 (11729401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68912 + ... + 69081.

It is an arithmetic number, because the mean of its divisors is an integer number (1862919).

Almost surely, 2^11729405 is an apocalyptic number.

It is an amenable number.

11729405 is a deficient number, since it is larger than the sum of its proper divisors (3173947).

11729405 is a wasteful number, since it uses less digits than its factorization.

11729405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138015.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 11729405 is about 3424.8218931793. The cubic root of 11729405 is about 227.2088938548.

The spelling of 11729405 in words is "eleven million, seven hundred twenty-nine thousand, four hundred five".