429905317 has 2 divisors, whose sum is σ = 429905318. Its totient is φ = 429905316.

The previous prime is 429905293. The next prime is 429905321. The reversal of 429905317 is 713509924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 429898756 + 6561 = 20734^2 + 81^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-429905317 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 429905317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (429905347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214952658 + 214952659.

It is an arithmetic number, because the mean of its divisors is an integer number (214952659).

Almost surely, 2^429905317 is an apocalyptic number.

It is an amenable number.

429905317 is a deficient number, since it is larger than the sum of its proper divisors (1).

429905317 is an equidigital number, since it uses as much as digits as its factorization.

429905317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 429905317 is about 20734.1582177816. The cubic root of 429905317 is about 754.7288279548.

The spelling of 429905317 in words is "four hundred twenty-nine million, nine hundred five thousand, three hundred seventeen".