429849857 has 2 divisors, whose sum is σ = 429849858. Its totient is φ = 429849856.

The previous prime is 429849821. The next prime is 429849877. The reversal of 429849857 is 758948924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 256032001 + 173817856 = 16001^2 + 13184^2 .

It is a cyclic number.

It is not a de Polignac number, because 429849857 - 2⁸ = 429849601 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (429849877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214924928 + 214924929.

It is an arithmetic number, because the mean of its divisors is an integer number (214924929).

Almost surely, 2^429849857 is an apocalyptic number.

It is an amenable number.

429849857 is a deficient number, since it is larger than the sum of its proper divisors (1).

429849857 is an equidigital number, since it uses as much as digits as its factorization.

429849857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5806080, while the sum is 56.

The square root of 429849857 is about 20732.8207680479. The cubic root of 429849857 is about 754.6963719238.

The spelling of 429849857 in words is "four hundred twenty-nine million, eight hundred forty-nine thousand, eight hundred fifty-seven".