3856683139 has 4 divisors (see below), whose sum is σ = 3856812856. Its totient is φ = 3856553424.

The previous prime is 3856683101. The next prime is 3856683157. The reversal of 3856683139 is 9313866583.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3856683139 - 2¹¹ = 3856681091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3856683169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4372 + ... + 87934.

It is an arithmetic number, because the mean of its divisors is an integer number (964203214).

Almost surely, 2^3856683139 is an apocalyptic number.

3856683139 is a deficient number, since it is larger than the sum of its proper divisors (129717).

3856683139 is an equidigital number, since it uses as much as digits as its factorization.

3856683139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129716.

The product of its digits is 2799360, while the sum is 52.

The square root of 3856683139 is about 62102.1991478563. The cubic root of 3856683139 is about 1568.2115677218.

The spelling of 3856683139 in words is "three billion, eight hundred fifty-six million, six hundred eighty-three thousand, one hundred thirty-nine".