3862381 has 4 divisors (see below), whose sum is σ = 3872700. Its totient is φ = 3852064.

The previous prime is 3862373. The next prime is 3862403. The reversal of 3862381 is 1832683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1832683 = 19 ⋅96457.

It can be written as a sum of positive squares in 2 ways, for example, as 855625 + 3006756 = 925^2 + 1734^2 .

It is a cyclic number.

It is not a de Polignac number, because 3862381 - 2³ = 3862373 is a prime.

It is a super-2 number, since 2×3862381² = 29835973978322, 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 (3862361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4576 + ... + 5353.

It is an arithmetic number, because the mean of its divisors is an integer number (968175).

Almost surely, 2^3862381 is an apocalyptic number.

It is an amenable number.

3862381 is a deficient number, since it is larger than the sum of its proper divisors (10319).

3862381 is an equidigital number, since it uses as much as digits as its factorization.

3862381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10318.

The product of its digits is 6912, while the sum is 31.

The square root of 3862381 is about 1965.2941255700. The cubic root of 3862381 is about 156.8983479268.

The spelling of 3862381 in words is "three million, eight hundred sixty-two thousand, three hundred eighty-one".