3921828999 has 32 divisors (see below), whose sum is σ = 5743325184. Its totient is φ = 2360746080.

The previous prime is 3921828997. The next prime is 3921829001. The reversal of 3921828999 is 9998281293.

3921828999 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3921828997) and next prime (3921829001).

It is not a de Polignac number, because 3921828999 - 2¹ = 3921828997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3921828997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4323504 + ... + 4324410.

It is an arithmetic number, because the mean of its divisors is an integer number (179478912).

Almost surely, 2^3921828999 is an apocalyptic number.

3921828999 is a deficient number, since it is larger than the sum of its proper divisors (1821496185).

3921828999 is a wasteful number, since it uses less digits than its factorization.

3921828999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667.

The product of its digits is 5038848, while the sum is 60.

The square root of 3921828999 is about 62624.5079741151. The cubic root of 3921828999 is about 1576.9922214257.

The spelling of 3921828999 in words is "three billion, nine hundred twenty-one million, eight hundred twenty-eight thousand, nine hundred ninety-nine".