3826843849 has 4 divisors (see below), whose sum is σ = 3827422480. Its totient is φ = 3826265220.

The previous prime is 3826843847. The next prime is 3826843877. The reversal of 3826843849 is 9483486283.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3826843849 - 2¹ = 3826843847 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3826843849.

It is not an unprimeable number, because it can be changed into a prime (3826843847) 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 3 ways as a sum of consecutive naturals, for example, 279279 + ... + 292660.

It is an arithmetic number, because the mean of its divisors is an integer number (956855620).

Almost surely, 2^3826843849 is an apocalyptic number.

It is an amenable number.

3826843849 is a deficient number, since it is larger than the sum of its proper divisors (578631).

3826843849 is an equidigital number, since it uses as much as digits as its factorization.

3826843849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578630.

The product of its digits is 7962624, while the sum is 55.

The square root of 3826843849 is about 61861.4892239105. The cubic root of 3826843849 is about 1564.1566564093.

The spelling of 3826843849 in words is "three billion, eight hundred twenty-six million, eight hundred forty-three thousand, eight hundred forty-nine".