4256686 has 8 divisors (see below), whose sum is σ = 7297200. Its totient is φ = 1824288.

The previous prime is 4256671. The next prime is 4256701. The reversal of 4256686 is 6866524.

It is an interprime number because it is at equal distance from previous prime (4256671) and next prime (4256701).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152011 + ... + 152038.

It is an arithmetic number, because the mean of its divisors is an integer number (912150).

Almost surely, 2^4256686 is an apocalyptic number.

4256686 is a deficient number, since it is larger than the sum of its proper divisors (3040514).

4256686 is a wasteful number, since it uses less digits than its factorization.

4256686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304058.

The product of its digits is 69120, while the sum is 37.

The square root of 4256686 is about 2063.1737687359. The cubic root of 4256686 is about 162.0654869112.

The spelling of 4256686 in words is "four million, two hundred fifty-six thousand, six hundred eighty-six".