11722429 has 2 divisors, whose sum is σ = 11722430. Its totient is φ = 11722428.

The previous prime is 11722423. The next prime is 11722489. The reversal of 11722429 is 92422711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10562500 + 1159929 = 3250^2 + 1077^2 .

It is a cyclic number.

It is not a de Polignac number, because 11722429 - 2³ = 11722421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11722397 and 11722406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11722421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5861214 + 5861215.

It is an arithmetic number, because the mean of its divisors is an integer number (5861215).

Almost surely, 2^11722429 is an apocalyptic number.

It is an amenable number.

11722429 is a deficient number, since it is larger than the sum of its proper divisors (1).

11722429 is an equidigital number, since it uses as much as digits as its factorization.

11722429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 28.

The square root of 11722429 is about 3423.8032945834. The cubic root of 11722429 is about 227.1638411696.

The spelling of 11722429 in words is "eleven million, seven hundred twenty-two thousand, four hundred twenty-nine".