429321047 has 2 divisors, whose sum is σ = 429321048. Its totient is φ = 429321046.

The previous prime is 429321031. The next prime is 429321049. The reversal of 429321047 is 740123924.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 429321047 - 2⁴ = 429321031 is a prime.

It is a super-2 number, since 2×429321047² = 368633122794352418, which contains 22 as substring.

Together with 429321049, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (429321049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214660523 + 214660524.

It is an arithmetic number, because the mean of its divisors is an integer number (214660524).

Almost surely, 2^429321047 is an apocalyptic number.

429321047 is a deficient number, since it is larger than the sum of its proper divisors (1).

429321047 is an equidigital number, since it uses as much as digits as its factorization.

429321047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 429321047 is about 20720.0638753842. The cubic root of 429321047 is about 754.3867640065.

The spelling of 429321047 in words is "four hundred twenty-nine million, three hundred twenty-one thousand, forty-seven".