429239227 has 2 divisors, whose sum is σ = 429239228. Its totient is φ = 429239226.

The previous prime is 429239189. The next prime is 429239243. The reversal of 429239227 is 722932924.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-429239227 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 429239227.

It is not a weakly prime, because it can be changed into another prime (429233227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214619613 + 214619614.

It is an arithmetic number, because the mean of its divisors is an integer number (214619614).

Almost surely, 2^429239227 is an apocalyptic number.

429239227 is a deficient number, since it is larger than the sum of its proper divisors (1).

429239227 is an equidigital number, since it uses as much as digits as its factorization.

429239227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 429239227 is about 20718.0893665415. The cubic root of 429239227 is about 754.3388372882.

The spelling of 429239227 in words is "four hundred twenty-nine million, two hundred thirty-nine thousand, two hundred twenty-seven".