429018857 has 2 divisors, whose sum is σ = 429018858. Its totient is φ = 429018856.

The previous prime is 429018853. The next prime is 429018859. The reversal of 429018857 is 758810924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 372528601 + 56490256 = 19301^2 + 7516^2 .

It is a cyclic number.

It is not a de Polignac number, because 429018857 - 2² = 429018853 is a prime.

Together with 429018859, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (429018853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214509428 + 214509429.

It is an arithmetic number, because the mean of its divisors is an integer number (214509429).

Almost surely, 2^429018857 is an apocalyptic number.

It is an amenable number.

429018857 is a deficient number, since it is larger than the sum of its proper divisors (1).

429018857 is an equidigital number, since it uses as much as digits as its factorization.

429018857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 429018857 is about 20712.7703844754. The cubic root of 429018857 is about 754.2097235018.

The spelling of 429018857 in words is "four hundred twenty-nine million, eighteen thousand, eight hundred fifty-seven".