4256705 has 8 divisors (see below), whose sum is σ = 5121792. Its totient is φ = 3396208.

The previous prime is 4256701. The next prime is 4256717. The reversal of 4256705 is 5076524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4256705 - 2² = 4256701 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4256701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1424 + ... + 3246.

It is an arithmetic number, because the mean of its divisors is an integer number (640224).

Almost surely, 2^4256705 is an apocalyptic number.

It is an amenable number.

4256705 is a deficient number, since it is larger than the sum of its proper divisors (865087).

4256705 is a wasteful number, since it uses less digits than its factorization.

4256705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 4256705 is about 2063.1783732872. The cubic root of 4256705 is about 162.0657280408.

The spelling of 4256705 in words is "four million, two hundred fifty-six thousand, seven hundred five".