3855649 has 8 divisors (see below), whose sum is σ = 4472768. Its totient is φ = 3255120.

The previous prime is 3855647. The next prime is 3855667. The reversal of 3855649 is 9465583.

3855649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3855649 - 2¹ = 3855647 is a prime.

It is a super-2 number, since 2×3855649² = 29732058422402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3855647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3642 + ... + 4579.

It is an arithmetic number, because the mean of its divisors is an integer number (559096).

Almost surely, 2^3855649 is an apocalyptic number.

It is an amenable number.

3855649 is a deficient number, since it is larger than the sum of its proper divisors (617119).

3855649 is an equidigital number, since it uses as much as digits as its factorization.

3855649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8295.

The product of its digits is 129600, while the sum is 40.

The square root of 3855649 is about 1963.5806578799. The cubic root of 3855649 is about 156.8071387360.

The spelling of 3855649 in words is "three million, eight hundred fifty-five thousand, six hundred forty-nine".