429406609 has 2 divisors, whose sum is σ = 429406610. Its totient is φ = 429406608.

The previous prime is 429406591. The next prime is 429406639. The reversal of 429406609 is 906604924.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 429318400 + 88209 = 20720^2 + 297^2 .

It is a cyclic number.

It is not a de Polignac number, because 429406609 - 2²¹ = 427309457 is a prime.

It is not a weakly prime, because it can be changed into another prime (429406639) 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, 214703304 + 214703305.

It is an arithmetic number, because the mean of its divisors is an integer number (214703305).

Almost surely, 2^429406609 is an apocalyptic number.

It is an amenable number.

429406609 is a deficient number, since it is larger than the sum of its proper divisors (1).

429406609 is an equidigital number, since it uses as much as digits as its factorization.

429406609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 429406609 is about 20722.1284862342. The cubic root of 429406609 is about 754.4368761182.

The spelling of 429406609 in words is "four hundred twenty-nine million, four hundred six thousand, six hundred nine".