3828936989 has 4 divisors (see below), whose sum is σ = 3829068156. Its totient is φ = 3828805824.

The previous prime is 3828936977. The next prime is 3828937009. The reversal of 3828936989 is 9896398283.

3828936989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 343805764 + 3485131225 = 18542^2 + 59035^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3828936989 is a prime.

It is a super-2 number, since 2×3828936989² = 29321516931464772242, 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 (3828936949) 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, 197 + ... + 87509.

It is an arithmetic number, because the mean of its divisors is an integer number (957267039).

Almost surely, 2^3828936989 is an apocalyptic number.

It is an amenable number.

3828936989 is a deficient number, since it is larger than the sum of its proper divisors (131167).

3828936989 is an equidigital number, since it uses as much as digits as its factorization.

3828936989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131166.

The product of its digits is 40310784, while the sum is 65.

The square root of 3828936989 is about 61878.4048679343. The cubic root of 3828936989 is about 1564.4417827655.

The spelling of 3828936989 in words is "three billion, eight hundred twenty-eight million, nine hundred thirty-six thousand, nine hundred eighty-nine".