3855481 has 16 divisors (see below), whose sum is σ = 4717440. Its totient is φ = 3075840.

The previous prime is 3855479. The next prime is 3855493. The reversal of 3855481 is 1845583.

It is a 3-Lehmer number, since φ(3855481) divides (3855481-1)³.

It is a cyclic number.

It is not a de Polignac number, because 3855481 - 2¹ = 3855479 is a prime.

It is a super-2 number, since 2×3855481² = 29729467482722, which contains 22 as substring.

Its product of digits (19200) is a multiple of the sum of its prime divisors (384).

It is not an unprimeable number, because it can be changed into a prime (3855431) 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 15 ways as a sum of consecutive naturals, for example, 21211 + ... + 21391.

It is an arithmetic number, because the mean of its divisors is an integer number (294840).

Almost surely, 2^3855481 is an apocalyptic number.

It is an amenable number.

3855481 is a deficient number, since it is larger than the sum of its proper divisors (861959).

3855481 is a wasteful number, since it uses less digits than its factorization.

3855481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384.

The product of its digits is 19200, while the sum is 34.

The square root of 3855481 is about 1963.5378784225. The cubic root of 3855481 is about 156.8048612135.

The spelling of 3855481 in words is "three million, eight hundred fifty-five thousand, four hundred eighty-one".