3996399999 has 8 divisors (see below), whose sum is σ = 5500421632. Its totient is φ = 2578322520.

The previous prime is 3996399991. The next prime is 3996400027. The reversal of 3996399999 is 9999936993.

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

It is not a de Polignac number, because 3996399999 - 2³ = 3996399991 is a prime.

It is a Duffinian number.

3996399999 is a modest number, since divided by 99999 gives 39963 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 3996399999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3996399991) 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, 21485929 + ... + 21486114.

It is an arithmetic number, because the mean of its divisors is an integer number (687552704).

Almost surely, 2^3996399999 is an apocalyptic number.

3996399999 is a deficient number, since it is larger than the sum of its proper divisors (1504021633).

3996399999 is a wasteful number, since it uses less digits than its factorization.

3996399999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42972077.

The product of its digits is 258280326, while the sum is 75.

The square root of 3996399999 is about 63217.0862900213. The cubic root of 3996399999 is about 1586.9246885827.

The spelling of 3996399999 in words is "three billion, nine hundred ninety-six million, three hundred ninety-nine thousand, nine hundred ninety-nine".