429390569 has 2 divisors, whose sum is σ = 429390570. Its totient is φ = 429390568.

The previous prime is 429390551. The next prime is 429390571. The reversal of 429390569 is 965093924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 422836969 + 6553600 = 20563^2 + 2560^2 .

It is a cyclic number.

It is not a de Polignac number, because 429390569 - 2²⁰ = 428341993 is a prime.

It is a super-2 number, since 2×429390569² = 368752521492287522, which contains 22 as substring.

Together with 429390571, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (429390509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214695284 + 214695285.

It is an arithmetic number, because the mean of its divisors is an integer number (214695285).

Almost surely, 2^429390569 is an apocalyptic number.

It is an amenable number.

429390569 is a deficient number, since it is larger than the sum of its proper divisors (1).

429390569 is an equidigital number, since it uses as much as digits as its factorization.

429390569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 524880, while the sum is 47.

The square root of 429390569 is about 20721.7414567406. The cubic root of 429390569 is about 754.4274822881.

The spelling of 429390569 in words is "four hundred twenty-nine million, three hundred ninety thousand, five hundred sixty-nine".