8005429 has 2 divisors, whose sum is σ = 8005430. Its totient is φ = 8005428.

The previous prime is 8005423. The next prime is 8005483. The reversal of 8005429 is 9245008.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7969329 + 36100 = 2823^2 + 190^2 .

It is a cyclic number.

It is not a de Polignac number, because 8005429 - 2⁵ = 8005397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8005397 and 8005406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8005423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4002714 + 4002715.

It is an arithmetic number, because the mean of its divisors is an integer number (4002715).

Almost surely, 2^8005429 is an apocalyptic number.

It is an amenable number.

8005429 is a deficient number, since it is larger than the sum of its proper divisors (1).

8005429 is an equidigital number, since it uses as much as digits as its factorization.

8005429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 8005429 is about 2829.3866826576. The cubic root of 8005429 is about 200.0452314365.

The spelling of 8005429 in words is "eight million, five thousand, four hundred twenty-nine".