6990210973 has 2 divisors, whose sum is σ = 6990210974. Its totient is φ = 6990210972.

The previous prime is 6990210961. The next prime is 6990210989. The reversal of 6990210973 is 3790120996.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6940056249 + 50154724 = 83307^2 + 7082^2 .

It is a cyclic number.

It is not a de Polignac number, because 6990210973 - 2¹³ = 6990202781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6990210923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3495105486 + 3495105487.

It is an arithmetic number, because the mean of its divisors is an integer number (3495105487).

Almost surely, 2^6990210973 is an apocalyptic number.

It is an amenable number.

6990210973 is a deficient number, since it is larger than the sum of its proper divisors (1).

6990210973 is an equidigital number, since it uses as much as digits as its factorization.

6990210973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 183708, while the sum is 46.

The square root of 6990210973 is about 83607.4815611617. The cubic root of 6990210973 is about 1912.0390651211.

The spelling of 6990210973 in words is "six billion, nine hundred ninety million, two hundred ten thousand, nine hundred seventy-three".