3946584839 has 4 divisors (see below), whose sum is σ = 3949302456. Its totient is φ = 3943867224.

The previous prime is 3946584809. The next prime is 3946584853. The reversal of 3946584839 is 9384856493.

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 3946584839 - 2²⁸ = 3678149383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3946584809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1356629 + ... + 1359534.

It is an arithmetic number, because the mean of its divisors is an integer number (987325614).

Almost surely, 2^3946584839 is an apocalyptic number.

3946584839 is a deficient number, since it is larger than the sum of its proper divisors (2717617).

3946584839 is a wasteful number, since it uses less digits than its factorization.

3946584839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717616.

The product of its digits is 22394880, while the sum is 59.

The square root of 3946584839 is about 62821.8500125553. The cubic root of 3946584839 is about 1580.3034239410.

The spelling of 3946584839 in words is "three billion, nine hundred forty-six million, five hundred eighty-four thousand, eight hundred thirty-nine".