3686940137 has 2 divisors, whose sum is σ = 3686940138. Its totient is φ = 3686940136.

The previous prime is 3686940109. The next prime is 3686940167. The reversal of 3686940137 is 7310496863.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3483478441 + 203461696 = 59021^2 + 14264^2 .

It is an emirp because it is prime and its reverse (7310496863) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3686940137 - 2¹⁸ = 3686677993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3686940091 and 3686940100.

It is not a weakly prime, because it can be changed into another prime (3686940167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1843470068 + 1843470069.

It is an arithmetic number, because the mean of its divisors is an integer number (1843470069).

Almost surely, 2^3686940137 is an apocalyptic number.

It is an amenable number.

3686940137 is a deficient number, since it is larger than the sum of its proper divisors (1).

3686940137 is an equidigital number, since it uses as much as digits as its factorization.

3686940137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 3686940137 is about 60720.1789934779. The cubic root of 3686940137 is about 1544.8584596791.

The spelling of 3686940137 in words is "three billion, six hundred eighty-six million, nine hundred forty thousand, one hundred thirty-seven".