3989329673 has 4 divisors (see below), whose sum is σ = 4559233920. Its totient is φ = 3419425428.

The previous prime is 3989329637. The next prime is 3989329693. The reversal of 3989329673 is 3769239893.

3989329673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3769239893 = 19 ⋅198381047.

It is a cyclic number.

It is not a de Polignac number, because 3989329673 - 2¹⁸ = 3989067529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3989329693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284952113 + ... + 284952126.

It is an arithmetic number, because the mean of its divisors is an integer number (1139808480).

Almost surely, 2^3989329673 is an apocalyptic number.

It is an amenable number.

3989329673 is a deficient number, since it is larger than the sum of its proper divisors (569904247).

3989329673 is an equidigital number, since it uses as much as digits as its factorization.

3989329673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569904246.

The product of its digits is 13226976, while the sum is 59.

The square root of 3989329673 is about 63161.1405296010. The cubic root of 3989329673 is about 1585.9882876424.

The spelling of 3989329673 in words is "three billion, nine hundred eighty-nine million, three hundred twenty-nine thousand, six hundred seventy-three".