4257705 has 16 divisors (see below), whose sum is σ = 6900480. Its totient is φ = 2241408.

The previous prime is 4257697. The next prime is 4257733. The reversal of 4257705 is 5077524.

4257705 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4257705 - 2³ = 4257697 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 612 + ... + 2981.

It is an arithmetic number, because the mean of its divisors is an integer number (431280).

Almost surely, 2^4257705 is an apocalyptic number.

It is an amenable number.

4257705 is a deficient number, since it is larger than the sum of its proper divisors (2642775).

4257705 is a wasteful number, since it uses less digits than its factorization.

4257705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680.

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 4257705 is about 2063.4207035891. The cubic root of 4257705 is about 162.0784180627.

The spelling of 4257705 in words is "four million, two hundred fifty-seven thousand, seven hundred five".