3998159361 has 27 divisors (see below), whose sum is σ = 6720227553. Its totient is φ = 2283903720.

The previous prime is 3998159359. The next prime is 3998159369. The reversal of 3998159361 is 1639518993.

The square root of 3998159361 is 63231.

It is a perfect power (a square), and thus also a powerful number.

3998159361 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3998159361 - 2¹ = 3998159359 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3998159298 and 3998159307.

It is not an unprimeable number, because it can be changed into a prime (3998159369) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1326346 + ... + 1329356.

Almost surely, 2^3998159361 is an apocalyptic number.

3998159361 is the 63231-st square number.

3998159361 is the 31616-th centered octagonal number.

It is an amenable number.

3998159361 is a deficient number, since it is larger than the sum of its proper divisors (2722068192).

3998159361 is an frugal number, since it uses more digits than its factorization.

3998159361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6042 (or 3021 counting only the distinct ones).

The product of its digits is 1574640, while the sum is 54.

The cubic root of 3998159361 is about 1587.1575285874.

The spelling of 3998159361 in words is "three billion, nine hundred ninety-eight million, one hundred fifty-nine thousand, three hundred sixty-one".