4230857 has 2 divisors, whose sum is σ = 4230858. Its totient is φ = 4230856.

The previous prime is 4230851. The next prime is 4230859. The reversal of 4230857 is 7580324.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4227136 + 3721 = 2056^2 + 61^2 .

It is a cyclic number.

It is not a de Polignac number, because 4230857 - 2¹⁰ = 4229833 is a prime.

Together with 4230859, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 4⁵ + 2²¹ + 3¹¹ + 0 + 8 + 5⁹ + 7⁴ .

It is not a weakly prime, because it can be changed into another prime (4230851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2115428 + 2115429.

It is an arithmetic number, because the mean of its divisors is an integer number (2115429).

Almost surely, 2^4230857 is an apocalyptic number.

It is an amenable number.

4230857 is a deficient number, since it is larger than the sum of its proper divisors (1).

4230857 is an equidigital number, since it uses as much as digits as its factorization.

4230857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 4230857 is about 2056.9047133983. The cubic root of 4230857 is about 161.7370244411.

The spelling of 4230857 in words is "four million, two hundred thirty thousand, eight hundred fifty-seven".