3969827899 has 8 divisors (see below), whose sum is σ = 4200774912. Its totient is φ = 3743743080.

The previous prime is 3969827891. The next prime is 3969827923. The reversal of 3969827899 is 9987289693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3969827899 - 2³ = 3969827891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3969827891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1213869 + ... + 1217134.

It is an arithmetic number, because the mean of its divisors is an integer number (525096864).

Almost surely, 2^3969827899 is an apocalyptic number.

3969827899 is a deficient number, since it is larger than the sum of its proper divisors (230947013).

3969827899 is a wasteful number, since it uses less digits than its factorization.

3969827899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2431097.

The product of its digits is 105815808, while the sum is 70.

The square root of 3969827899 is about 63006.5702843759. The cubic root of 3969827899 is about 1583.3997055489.

The spelling of 3969827899 in words is "three billion, nine hundred sixty-nine million, eight hundred twenty-seven thousand, eight hundred ninety-nine".