3884649269 has 4 divisors (see below), whose sum is σ = 3888796044. Its totient is φ = 3880502496.

The previous prime is 3884649247. The next prime is 3884649281. The reversal of 3884649269 is 9629464883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9629464883 = 47387 ⋅203209.

It can be written as a sum of positive squares in 2 ways, for example, as 1723329169 + 2161320100 = 41513^2 + 46490^2 .

It is a cyclic number.

It is not a de Polignac number, because 3884649269 - 2¹⁶ = 3884583733 is a prime.

It is a super-2 number, since 2×3884649269² = 30180999886284468722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3884649299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2071982 + ... + 2073855.

It is an arithmetic number, because the mean of its divisors is an integer number (972199011).

Almost surely, 2^3884649269 is an apocalyptic number.

It is an amenable number.

3884649269 is a deficient number, since it is larger than the sum of its proper divisors (4146775).

3884649269 is an equidigital number, since it uses as much as digits as its factorization.

3884649269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4146774.

The product of its digits is 17915904, while the sum is 59.

The square root of 3884649269 is about 62326.9545943005. The cubic root of 3884649269 is about 1571.9929886198.

The spelling of 3884649269 in words is "three billion, eight hundred eighty-four million, six hundred forty-nine thousand, two hundred sixty-nine".