6787393 has 2 divisors, whose sum is σ = 6787394. Its totient is φ = 6787392.

The previous prime is 6787367. The next prime is 6787399. The reversal of 6787393 is 3937876.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4528384 + 2259009 = 2128^2 + 1503^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6787393 is a prime.

It is not a weakly prime, because it can be changed into another prime (6787399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3393696 + 3393697.

It is an arithmetic number, because the mean of its divisors is an integer number (3393697).

Almost surely, 2^6787393 is an apocalyptic number.

It is an amenable number.

6787393 is a deficient number, since it is larger than the sum of its proper divisors (1).

6787393 is an equidigital number, since it uses as much as digits as its factorization.

6787393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 43.

The square root of 6787393 is about 2605.2625587453. The cubic root of 6787393 is about 189.3364945112.

The spelling of 6787393 in words is "six million, seven hundred eighty-seven thousand, three hundred ninety-three".