6990791333 has 2 divisors, whose sum is σ = 6990791334. Its totient is φ = 6990791332.

The previous prime is 6990791321. The next prime is 6990791363. The reversal of 6990791333 is 3331970996.

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., 6351611809 + 639179524 = 79697^2 + 25282^2 .

It is a cyclic number.

It is not a de Polignac number, because 6990791333 - 2¹⁰ = 6990790309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6990791363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3495395666 + 3495395667.

It is an arithmetic number, because the mean of its divisors is an integer number (3495395667).

Almost surely, 2^6990791333 is an apocalyptic number.

It is an amenable number.

6990791333 is a deficient number, since it is larger than the sum of its proper divisors (1).

6990791333 is an equidigital number, since it uses as much as digits as its factorization.

6990791333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 826686, while the sum is 50.

The square root of 6990791333 is about 83610.9522311521. The cubic root of 6990791333 is about 1912.0919791313.

The spelling of 6990791333 in words is "six billion, nine hundred ninety million, seven hundred ninety-one thousand, three hundred thirty-three".