3984869829 has 32 divisors (see below), whose sum is σ = 5639810560. Its totient is φ = 2495707200.

The previous prime is 3984869821. The next prime is 3984869839. The reversal of 3984869829 is 9289684893.

It is not a de Polignac number, because 3984869829 - 2³ = 3984869821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3984869829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3984869821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5062974 + ... + 5063760.

It is an arithmetic number, because the mean of its divisors is an integer number (176244080).

Almost surely, 2^3984869829 is an apocalyptic number.

It is an amenable number.

3984869829 is a deficient number, since it is larger than the sum of its proper divisors (1654940731).

3984869829 is a wasteful number, since it uses less digits than its factorization.

3984869829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441.

The product of its digits is 53747712, while the sum is 66.

The square root of 3984869829 is about 63125.8253728219. The cubic root of 3984869829 is about 1585.3970523220.

The spelling of 3984869829 in words is "three billion, nine hundred eighty-four million, eight hundred sixty-nine thousand, eight hundred twenty-nine".