3889486809 has 32 divisors (see below), whose sum is σ = 6252892800. Its totient is φ = 2375231040.

The previous prime is 3889486801. The next prime is 3889486813. The reversal of 3889486809 is 9086849883.

It is not a de Polignac number, because 3889486809 - 2³ = 3889486801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3889486801) 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, 3687 + ... + 88275.

It is an arithmetic number, because the mean of its divisors is an integer number (195402900).

Almost surely, 2^3889486809 is an apocalyptic number.

3889486809 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3889486809 is a deficient number, since it is larger than the sum of its proper divisors (2363405991).

3889486809 is a wasteful number, since it uses less digits than its factorization.

3889486809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84742 (or 84736 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 63.

The square root of 3889486809 is about 62365.7502881189. The cubic root of 3889486809 is about 1572.6452503785.

The spelling of 3889486809 in words is "three billion, eight hundred eighty-nine million, four hundred eighty-six thousand, eight hundred nine".