3646871339 has 2 divisors, whose sum is σ = 3646871340. Its totient is φ = 3646871338.

The previous prime is 3646871317. The next prime is 3646871383. The reversal of 3646871339 is 9331786463.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9331786463) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3646871339 - 2⁸ = 3646871083 is a prime.

It is not a weakly prime, because it can be changed into another prime (3646811339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1823435669 + 1823435670.

It is an arithmetic number, because the mean of its divisors is an integer number (1823435670).

Almost surely, 2^3646871339 is an apocalyptic number.

3646871339 is a deficient number, since it is larger than the sum of its proper divisors (1).

3646871339 is an equidigital number, since it uses as much as digits as its factorization.

3646871339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 50.

The square root of 3646871339 is about 60389.3313342680. The cubic root of 3646871339 is about 1539.2416768830.

The spelling of 3646871339 in words is "three billion, six hundred forty-six million, eight hundred seventy-one thousand, three hundred thirty-nine".