3984271669 has 16 divisors (see below), whose sum is σ = 4829333760. Its totient is φ = 3213048960.

The previous prime is 3984271649. The next prime is 3984271723. The reversal of 3984271669 is 9661724893.

It is a cyclic number.

It is not a de Polignac number, because 3984271669 - 2⁷ = 3984271541 is a prime.

It is a super-2 number, since 2×3984271669² = 31748841464792091122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3984271619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193024 + ... + 212665.

It is an arithmetic number, because the mean of its divisors is an integer number (301833360).

Almost surely, 2^3984271669 is an apocalyptic number.

It is an amenable number.

3984271669 is a deficient number, since it is larger than the sum of its proper divisors (845062091).

3984271669 is a wasteful number, since it uses less digits than its factorization.

3984271669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405780.

The product of its digits is 3919104, while the sum is 55.

The square root of 3984271669 is about 63121.0873559700. The cubic root of 3984271669 is about 1585.3177215370.

It can be divided in two parts, 3984 and 271669, that added together give a triangular number (275653 = T₇₄₂).

The spelling of 3984271669 in words is "three billion, nine hundred eighty-four million, two hundred seventy-one thousand, six hundred sixty-nine".