3785381 has 8 divisors (see below), whose sum is σ = 3900960. Its totient is φ = 3671632.

The previous prime is 3785371. The next prime is 3785393. The reversal of 3785381 is 1835873.

3785381 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 3785381 - 2¹⁰ = 3784357 is a prime.

It is a super-2 number, since 2×3785381² = 28658218630322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3785371) 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, 4511 + ... + 5283.

It is an arithmetic number, because the mean of its divisors is an integer number (487620).

Almost surely, 2^3785381 is an apocalyptic number.

It is an amenable number.

3785381 is a deficient number, since it is larger than the sum of its proper divisors (115579).

3785381 is an equidigital number, since it uses as much as digits as its factorization.

3785381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915.

The product of its digits is 20160, while the sum is 35.

The square root of 3785381 is about 1945.6055612585. The cubic root of 3785381 is about 155.8487054971.

The spelling of 3785381 in words is "three million, seven hundred eighty-five thousand, three hundred eighty-one".