4257889 has 2 divisors, whose sum is σ = 4257890. Its totient is φ = 4257888.

The previous prime is 4257833. The next prime is 4257899. The reversal of 4257889 is 9887524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2250000 + 2007889 = 1500^2 + 1417^2 .

It is a cyclic number.

It is not a de Polignac number, because 4257889 - 2¹⁵ = 4225121 is a prime.

It is a d-powerful number, because it can be written as 4⁶ + 2²² + 5² + 7³ + 8 + 8² + 9⁵ .

It is not a weakly prime, because it can be changed into another prime (4257899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2128944 + 2128945.

It is an arithmetic number, because the mean of its divisors is an integer number (2128945).

Almost surely, 2^4257889 is an apocalyptic number.

It is an amenable number.

4257889 is a deficient number, since it is larger than the sum of its proper divisors (1).

4257889 is an equidigital number, since it uses as much as digits as its factorization.

4257889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 43.

The square root of 4257889 is about 2063.4652892646. The cubic root of 4257889 is about 162.0807528103.

The spelling of 4257889 in words is "four million, two hundred fifty-seven thousand, eight hundred eighty-nine".