11717929 has 4 divisors (see below), whose sum is σ = 11939076. Its totient is φ = 11496784.

The previous prime is 11717921. The next prime is 11717933. The reversal of 11717929 is 92971711.

11717929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 9467929 + 2250000 = 3077^2 + 1500^2 .

It is a cyclic number.

It is not a de Polignac number, because 11717929 - 2³ = 11717921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11717921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110494 + ... + 110599.

It is an arithmetic number, because the mean of its divisors is an integer number (2984769).

Almost surely, 2^11717929 is an apocalyptic number.

It is an amenable number.

11717929 is a deficient number, since it is larger than the sum of its proper divisors (221147).

11717929 is an equidigital number, since it uses as much as digits as its factorization.

11717929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221146.

The product of its digits is 7938, while the sum is 37.

The square root of 11717929 is about 3423.1460675817. The cubic root of 11717929 is about 227.1347696032.

The spelling of 11717929 in words is "eleven million, seven hundred seventeen thousand, nine hundred twenty-nine".