3855613 has 8 divisors (see below), whose sum is σ = 4077920. Its totient is φ = 3635280.

The previous prime is 3855581. The next prime is 3855623. The reversal of 3855613 is 3165583.

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 3855613 - 2⁵ = 3855581 is a prime.

It is a Duffinian number.

3855613 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3855623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5503 + ... + 6163.

It is an arithmetic number, because the mean of its divisors is an integer number (509740).

Almost surely, 2^3855613 is an apocalyptic number.

It is an amenable number.

3855613 is a deficient number, since it is larger than the sum of its proper divisors (222307).

3855613 is a wasteful number, since it uses less digits than its factorization.

3855613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987.

The product of its digits is 10800, while the sum is 31.

The square root of 3855613 is about 1963.5714909318. The cubic root of 3855613 is about 156.8066507010.

The spelling of 3855613 in words is "three million, eight hundred fifty-five thousand, six hundred thirteen".