3830821491 has 16 divisors (see below), whose sum is σ = 5845137408. Its totient is φ = 2186155200.

The previous prime is 3830821483. The next prime is 3830821493. The reversal of 3830821491 is 1941280383.

3830821491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3830821491 - 2³ = 3830821483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3830821493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103875 + ... + 135836.

It is an arithmetic number, because the mean of its divisors is an integer number (365321088).

Almost surely, 2^3830821491 is an apocalyptic number.

3830821491 is a deficient number, since it is larger than the sum of its proper divisors (2014315917).

3830821491 is a wasteful number, since it uses less digits than its factorization.

3830821491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240482.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 3830821491 is about 61893.6304558070. The cubic root of 3830821491 is about 1564.6983996921.

The spelling of 3830821491 in words is "three billion, eight hundred thirty million, eight hundred twenty-one thousand, four hundred ninety-one".