3879965439 has 12 divisors (see below), whose sum is σ = 6405022416. Its totient is φ = 2217123072.

The previous prime is 3879965429. The next prime is 3879965459. The reversal of 3879965439 is 9345699783.

3879965439 is a `hidden beast` number, since 3 + 87 + 9 + 9 + 6 + 543 + 9 = 666.

3879965439 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3879965439 - 2⁷ = 3879965311 is a prime.

It is a super-3 number, since 3×3879965439³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63), and also a Moran number because the ratio is a prime number: 61586753 = 3879965439 / (3 + 8 + 7 + 9 + 9 + 6 + 5 + 4 + 3 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3879965429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30793314 + ... + 30793439.

It is an arithmetic number, because the mean of its divisors is an integer number (533751868).

Almost surely, 2^3879965439 is an apocalyptic number.

3879965439 is a deficient number, since it is larger than the sum of its proper divisors (2525056977).

3879965439 is a wasteful number, since it uses less digits than its factorization.

3879965439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61586766 (or 61586763 counting only the distinct ones).

The product of its digits is 44089920, while the sum is 63.

The square root of 3879965439 is about 62289.3685872637. The cubic root of 3879965439 is about 1571.3609359229.

The spelling of 3879965439 in words is "three billion, eight hundred seventy-nine million, nine hundred sixty-five thousand, four hundred thirty-nine".