4056785 has 8 divisors (see below), whose sum is σ = 5124480. Its totient is φ = 3074544.

The previous prime is 4056769. The next prime is 4056803. The reversal of 4056785 is 5876504.

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 4056785 - 2⁴ = 4056769 is a prime.

It is a d-powerful number, because it can be written as 4⁶ + 0 + 5 + 6 + 7⁴ + 8⁷ + 5⁹ .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21257 + ... + 21446.

It is an arithmetic number, because the mean of its divisors is an integer number (640560).

Almost surely, 2^4056785 is an apocalyptic number.

It is an amenable number.

4056785 is a deficient number, since it is larger than the sum of its proper divisors (1067695).

4056785 is a wasteful number, since it uses less digits than its factorization.

4056785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42727.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 4056785 is about 2014.1462211071. The cubic root of 4056785 is about 159.4877497692.

The spelling of 4056785 in words is "four million, fifty-six thousand, seven hundred eighty-five".