429516391 has 2 divisors, whose sum is σ = 429516392. Its totient is φ = 429516390.

The previous prime is 429516389. The next prime is 429516397. The reversal of 429516391 is 193615924.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 429516391 - 2¹ = 429516389 is a prime.

Together with 429516389, it forms a pair of twin primes.

It is a Chen prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (429516397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214758195 + 214758196.

It is an arithmetic number, because the mean of its divisors is an integer number (214758196).

Almost surely, 2^429516391 is an apocalyptic number.

429516391 is the 13108-th centered pentagonal number.

429516391 is a deficient number, since it is larger than the sum of its proper divisors (1).

429516391 is an equidigital number, since it uses as much as digits as its factorization.

429516391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 40.

The square root of 429516391 is about 20724.7772243757. Note that the first 3 decimals coincide. The cubic root of 429516391 is about 754.5011636956.

The spelling of 429516391 in words is "four hundred twenty-nine million, five hundred sixteen thousand, three hundred ninety-one".