3829249891 has 4 divisors (see below), whose sum is σ = 3868726792. Its totient is φ = 3789772992.

The previous prime is 3829249883. The next prime is 3829249913. The reversal of 3829249891 is 1989429283.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1989429283 = 37 ⋅53768359.

It is a cyclic number.

It is not a de Polignac number, because 3829249891 - 2³ = 3829249883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3829249591) by changing a digit.

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, 19738305 + ... + 19738498.

It is an arithmetic number, because the mean of its divisors is an integer number (967181698).

Almost surely, 2^3829249891 is an apocalyptic number.

3829249891 is a deficient number, since it is larger than the sum of its proper divisors (39476901).

3829249891 is an equidigital number, since it uses as much as digits as its factorization.

3829249891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39476900.

The product of its digits is 2239488, while the sum is 55.

The square root of 3829249891 is about 61880.9331781608. The cubic root of 3829249891 is about 1564.4843971717.

The spelling of 3829249891 in words is "three billion, eight hundred twenty-nine million, two hundred forty-nine thousand, eight hundred ninety-one".