3968239115 has 4 divisors (see below), whose sum is σ = 4761886944. Its totient is φ = 3174591288.

The previous prime is 3968239109. The next prime is 3968239139. The reversal of 3968239115 is 5119328693.

3968239115 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3968239115 - 2²² = 3964044811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3968239115.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396823907 + ... + 396823916.

It is an arithmetic number, because the mean of its divisors is an integer number (1190471736).

Almost surely, 2^3968239115 is an apocalyptic number.

3968239115 is a deficient number, since it is larger than the sum of its proper divisors (793647829).

3968239115 is an equidigital number, since it uses as much as digits as its factorization.

3968239115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793647828.

The product of its digits is 349920, while the sum is 47.

The square root of 3968239115 is about 62993.9609407124. The cubic root of 3968239115 is about 1583.1884440147.

The spelling of 3968239115 in words is "three billion, nine hundred sixty-eight million, two hundred thirty-nine thousand, one hundred fifteen".