3948161369 has 4 divisors (see below), whose sum is σ = 3956616144. Its totient is φ = 3939706596.

The previous prime is 3948161363. The next prime is 3948161429. The reversal of 3948161369 is 9631618493.

3948161369 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: 9631618493 = 7 ⋅1375945499.

It is a cyclic number.

It is not a de Polignac number, because 3948161369 - 2²⁴ = 3931384153 is a prime.

It is a super-2 number, since 2×3948161369² = 31175956391327908322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3948161363) 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, 4226687 + ... + 4227620.

It is an arithmetic number, because the mean of its divisors is an integer number (989154036).

Almost surely, 2^3948161369 is an apocalyptic number.

It is an amenable number.

3948161369 is a deficient number, since it is larger than the sum of its proper divisors (8454775).

3948161369 is an equidigital number, since it uses as much as digits as its factorization.

3948161369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8454774.

The product of its digits is 839808, while the sum is 50.

The square root of 3948161369 is about 62834.3963844645. The cubic root of 3948161369 is about 1580.5138222295.

The spelling of 3948161369 in words is "three billion, nine hundred forty-eight million, one hundred sixty-one thousand, three hundred sixty-nine".