3856478 has 8 divisors (see below), whose sum is σ = 5984280. Its totient is φ = 1861720.

The previous prime is 3856477. The next prime is 3856499. The reversal of 3856478 is 8746583.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3856477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33188 + ... + 33303.

It is an arithmetic number, because the mean of its divisors is an integer number (748035).

Almost surely, 2^3856478 is an apocalyptic number.

3856478 is a deficient number, since it is larger than the sum of its proper divisors (2127802).

3856478 is a wasteful number, since it uses less digits than its factorization.

3856478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66522.

The product of its digits is 161280, while the sum is 41.

The square root of 3856478 is about 1963.7917404857. The cubic root of 3856478 is about 156.8183762563.

It can be divided in two parts, 3856 and 478, that added together give a palindrome (4334).

The spelling of 3856478 in words is "three million, eight hundred fifty-six thousand, four hundred seventy-eight".