7985593937 has 2 divisors, whose sum is σ = 7985593938. Its totient is φ = 7985593936.

The previous prime is 7985593921. The next prime is 7985593939. The reversal of 7985593937 is 7393955897.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7982350336 + 3243601 = 89344^2 + 1801^2 .

It is a cyclic number.

It is not a de Polignac number, because 7985593937 - 2⁴ = 7985593921 is a prime.

Together with 7985593939, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7985593939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3992796968 + 3992796969.

It is an arithmetic number, because the mean of its divisors is an integer number (3992796969).

Almost surely, 2^7985593937 is an apocalyptic number.

It is an amenable number.

7985593937 is a deficient number, since it is larger than the sum of its proper divisors (1).

7985593937 is an equidigital number, since it uses as much as digits as its factorization.

7985593937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64297800, while the sum is 65.

The square root of 7985593937 is about 89362.1504721098. The cubic root of 7985593937 is about 1998.7987734218.

The spelling of 7985593937 in words is "seven billion, nine hundred eighty-five million, five hundred ninety-three thousand, nine hundred thirty-seven".