3821843 has 8 divisors (see below), whose sum is σ = 3917760. Its totient is φ = 3727080.

The previous prime is 3821837. The next prime is 3821863. The reversal of 3821843 is 3481283.

It is a happy number.

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 3821843 - 2⁴ = 3821827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3821803) 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, 12296 + ... + 12602.

It is an arithmetic number, because the mean of its divisors is an integer number (489720).

Almost surely, 2^3821843 is an apocalyptic number.

3821843 is a deficient number, since it is larger than the sum of its proper divisors (95917).

3821843 is a wasteful number, since it uses less digits than its factorization.

3821843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577.

The product of its digits is 4608, while the sum is 29.

The square root of 3821843 is about 1954.9534521313. The cubic root of 3821843 is about 156.3475022379.

It can be divided in two parts, 3821 and 843, that added together give a palindrome (4664).

The spelling of 3821843 in words is "three million, eight hundred twenty-one thousand, eight hundred forty-three".