3928900689 has 48 divisors (see below), whose sum is σ = 6557241600. Its totient is φ = 2220497280.

The previous prime is 3928900673. The next prime is 3928900691. The reversal of 3928900689 is 9860098293.

It is not a de Polignac number, because 3928900689 - 2⁴ = 3928900673 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3928900609) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2599444 + ... + 2600954.

It is an arithmetic number, because the mean of its divisors is an integer number (136609200).

Almost surely, 2^3928900689 is an apocalyptic number.

It is an amenable number.

3928900689 is a deficient number, since it is larger than the sum of its proper divisors (2628340911).

3928900689 is a wasteful number, since it uses less digits than its factorization.

3928900689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950 (or 1947 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The square root of 3928900689 is about 62680.9435873456. The cubic root of 3928900689 is about 1577.9395093603.

The spelling of 3928900689 in words is "three billion, nine hundred twenty-eight million, nine hundred thousand, six hundred eighty-nine".