8419429 has 2 divisors, whose sum is σ = 8419430. Its totient is φ = 8419428.

The previous prime is 8419423. The next prime is 8419441. The reversal of 8419429 is 9249148.

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., 8398404 + 21025 = 2898^2 + 145^2 .

It is a cyclic number.

It is not a de Polignac number, because 8419429 - 2¹³ = 8411237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8419423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4209714 + 4209715.

It is an arithmetic number, because the mean of its divisors is an integer number (4209715).

Almost surely, 2^8419429 is an apocalyptic number.

It is an amenable number.

8419429 is a deficient number, since it is larger than the sum of its proper divisors (1).

8419429 is an equidigital number, since it uses as much as digits as its factorization.

8419429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 37.

The square root of 8419429 is about 2901.6252342437. The cubic root of 8419429 is about 203.4358773879.

The spelling of 8419429 in words is "eight million, four hundred nineteen thousand, four hundred twenty-nine".