6990853 has 2 divisors, whose sum is σ = 6990854. Its totient is φ = 6990852.

The previous prime is 6990839. The next prime is 6990857. The reversal of 6990853 is 3580996.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6315169 + 675684 = 2513^2 + 822^2 .

It is a cyclic number.

It is not a de Polignac number, because 6990853 - 2⁵ = 6990821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6990857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3495426 + 3495427.

It is an arithmetic number, because the mean of its divisors is an integer number (3495427).

Almost surely, 2^6990853 is an apocalyptic number.

It is an amenable number.

6990853 is a deficient number, since it is larger than the sum of its proper divisors (1).

6990853 is an equidigital number, since it uses as much as digits as its factorization.

6990853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 6990853 is about 2644.0221254747. The cubic root of 6990853 is about 191.2097601415.

The spelling of 6990853 in words is "six million, nine hundred ninety thousand, eight hundred fifty-three".