3836421889 has 4 divisors (see below), whose sum is σ = 3842827200. Its totient is φ = 3830016580.

The previous prime is 3836421887. The next prime is 3836421913. The reversal of 3836421889 is 9881246383.

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 3836421889 - 2¹ = 3836421887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3836421887) 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, 3201757 + ... + 3202954.

It is an arithmetic number, because the mean of its divisors is an integer number (960706800).

Almost surely, 2^3836421889 is an apocalyptic number.

It is an amenable number.

3836421889 is a deficient number, since it is larger than the sum of its proper divisors (6405311).

3836421889 is an equidigital number, since it uses as much as digits as its factorization.

3836421889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6405310.

The product of its digits is 1990656, while the sum is 52.

The square root of 3836421889 is about 61938.8560517548. The cubic root of 3836421889 is about 1565.4605222990.

The spelling of 3836421889 in words is "three billion, eight hundred thirty-six million, four hundred twenty-one thousand, eight hundred eighty-nine".