429216769 has 2 divisors, whose sum is σ = 429216770. Its totient is φ = 429216768.

The previous prime is 429216757. The next prime is 429216773. The reversal of 429216769 is 967612924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 416649744 + 12567025 = 20412^2 + 3545^2 .

It is a cyclic number.

It is not a de Polignac number, because 429216769 - 2⁹ = 429216257 is a prime.

It is a super-2 number, since 2×429216769² = 368454069581598722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (429216709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214608384 + 214608385.

It is an arithmetic number, because the mean of its divisors is an integer number (214608385).

Almost surely, 2^429216769 is an apocalyptic number.

It is an amenable number.

429216769 is a deficient number, since it is larger than the sum of its proper divisors (1).

429216769 is an equidigital number, since it uses as much as digits as its factorization.

429216769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 46.

The square root of 429216769 is about 20717.5473693196. The cubic root of 429216769 is about 754.3256812702.

The spelling of 429216769 in words is "four hundred twenty-nine million, two hundred sixteen thousand, seven hundred sixty-nine".