6290687993 has 2 divisors, whose sum is σ = 6290687994. Its totient is φ = 6290687992.

The previous prime is 6290687983. The next prime is 6290688037. The reversal of 6290687993 is 3997860926.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4854884329 + 1435803664 = 69677^2 + 37892^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6290687993 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6290687983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3145343996 + 3145343997.

It is an arithmetic number, because the mean of its divisors is an integer number (3145343997).

Almost surely, 2^6290687993 is an apocalyptic number.

It is an amenable number.

6290687993 is a deficient number, since it is larger than the sum of its proper divisors (1).

6290687993 is an equidigital number, since it uses as much as digits as its factorization.

6290687993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8817984, while the sum is 59.

The square root of 6290687993 is about 79313.8575092651. The cubic root of 6290687993 is about 1846.0043290869.

The spelling of 6290687993 in words is "six billion, two hundred ninety million, six hundred eighty-seven thousand, nine hundred ninety-three".