3828857784 has 16 divisors (see below), whose sum is σ = 9572144520. Its totient is φ = 1276285920.

The previous prime is 3828857749. The next prime is 3828857801. The reversal of 3828857784 is 4877588283.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79767847 + ... + 79767894.

Almost surely, 2^3828857784 is an apocalyptic number.

It is an amenable number.

3828857784 is an abundant number, since it is smaller than the sum of its proper divisors (5743286736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3828857784 is a wasteful number, since it uses less digits than its factorization.

3828857784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159535750 (or 159535746 counting only the distinct ones).

The product of its digits is 24084480, while the sum is 60.

The square root of 3828857784 is about 61877.7648594388. The cubic root of 3828857784 is about 1564.4309953967.

The spelling of 3828857784 in words is "three billion, eight hundred twenty-eight million, eight hundred fifty-seven thousand, seven hundred eighty-four".