4257859 has 4 divisors (see below), whose sum is σ = 4262104. Its totient is φ = 4253616.

The previous prime is 4257833. The next prime is 4257889. The reversal of 4257859 is 9587524.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4257859 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (4257889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319 + ... + 2935.

It is an arithmetic number, because the mean of its divisors is an integer number (1065526).

Almost surely, 2^4257859 is an apocalyptic number.

4257859 is a deficient number, since it is larger than the sum of its proper divisors (4245).

4257859 is a wasteful number, since it uses less digits than its factorization.

4257859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4244.

The product of its digits is 100800, while the sum is 40.

The square root of 4257859 is about 2063.4580199267. The cubic root of 4257859 is about 162.0803721495.

The spelling of 4257859 in words is "four million, two hundred fifty-seven thousand, eight hundred fifty-nine".