3988253609 has 4 divisors (see below), whose sum is σ = 3988629204. Its totient is φ = 3987878016.

The previous prime is 3988253593. The next prime is 3988253629. The reversal of 3988253609 is 9063528893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9063528893 = 4297 ⋅2109269.

It can be written as a sum of positive squares in 2 ways, for example, as 3612010000 + 376243609 = 60100^2 + 19397^2 .

It is a cyclic number.

It is not a de Polignac number, because 3988253609 - 2⁴ = 3988253593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3988253629) 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, 171392 + ... + 193265.

It is an arithmetic number, because the mean of its divisors is an integer number (997157301).

Almost surely, 2^3988253609 is an apocalyptic number.

It is an amenable number.

3988253609 is a deficient number, since it is larger than the sum of its proper divisors (375595).

3988253609 is a wasteful number, since it uses less digits than its factorization.

3988253609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375594.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The square root of 3988253609 is about 63152.6215528698. The cubic root of 3988253609 is about 1585.8456756825.

The spelling of 3988253609 in words is "three billion, nine hundred eighty-eight million, two hundred fifty-three thousand, six hundred nine".