3898832209 has 4 divisors (see below), whose sum is σ = 3906646000. Its totient is φ = 3891018420.

The previous prime is 3898832177. The next prime is 3898832221. The reversal of 3898832209 is 9022388983.

3898832209 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: 9022388983 = 42899 ⋅210317.

It is a cyclic number.

It is not a de Polignac number, because 3898832209 - 2⁵ = 3898832177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3898835209) 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, 3906147 + ... + 3907144.

It is an arithmetic number, because the mean of its divisors is an integer number (976661500).

Almost surely, 2^3898832209 is an apocalyptic number.

It is an amenable number.

3898832209 is a deficient number, since it is larger than the sum of its proper divisors (7813791).

3898832209 is an equidigital number, since it uses as much as digits as its factorization.

3898832209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7813790.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The square root of 3898832209 is about 62440.6294731243. The cubic root of 3898832209 is about 1573.9037920440.

The spelling of 3898832209 in words is "three billion, eight hundred ninety-eight million, eight hundred thirty-two thousand, two hundred nine".