3856385 has 16 divisors (see below), whose sum is σ = 5053440. Its totient is φ = 2808000.

The previous prime is 3856381. The next prime is 3856393. The reversal of 3856385 is 5836583.

It is not a de Polignac number, because 3856385 - 2² = 3856381 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (3856381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4760 + ... + 5510.

It is an arithmetic number, because the mean of its divisors is an integer number (315840).

It is a Proth number, since it is equal to 1883 ⋅ 2¹¹ + 1 and 1883 < 2¹¹.

Almost surely, 2^3856385 is an apocalyptic number.

It is an amenable number.

3856385 is a deficient number, since it is larger than the sum of its proper divisors (1197055).

3856385 is a wasteful number, since it uses less digits than its factorization.

3856385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848.

The product of its digits is 86400, while the sum is 38.

The square root of 3856385 is about 1963.7680616611. The cubic root of 3856385 is about 156.8171156738.

The spelling of 3856385 in words is "three million, eight hundred fifty-six thousand, three hundred eighty-five".