3986406239 has 2 divisors, whose sum is σ = 3986406240. Its totient is φ = 3986406238.

The previous prime is 3986406227. The next prime is 3986406241. The reversal of 3986406239 is 9326046893.

It is a strong prime.

It is an emirp because it is prime and its reverse (9326046893) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3986406239 - 2²⁴ = 3969629023 is a prime.

It is a super-3 number, since 3×3986406239³ (a number of 30 digits) contains 333 as substring.

Together with 3986406241, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3986402239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1993203119 + 1993203120.

It is an arithmetic number, because the mean of its divisors is an integer number (1993203120).

Almost surely, 2^3986406239 is an apocalyptic number.

3986406239 is a deficient number, since it is larger than the sum of its proper divisors (1).

3986406239 is an equidigital number, since it uses as much as digits as its factorization.

3986406239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The square root of 3986406239 is about 63137.9936250749. The cubic root of 3986406239 is about 1585.6007818460.

The spelling of 3986406239 in words is "three billion, nine hundred eighty-six million, four hundred six thousand, two hundred thirty-nine".