6994993823 has 2 divisors, whose sum is σ = 6994993824. Its totient is φ = 6994993822.

The previous prime is 6994993793. The next prime is 6994993829. The reversal of 6994993823 is 3283994996.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6994993823 - 2²⁸ = 6726558367 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6994993829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3497496911 + 3497496912.

It is an arithmetic number, because the mean of its divisors is an integer number (3497496912).

Almost surely, 2^6994993823 is an apocalyptic number.

6994993823 is a deficient number, since it is larger than the sum of its proper divisors (1).

6994993823 is an equidigital number, since it uses as much as digits as its factorization.

6994993823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22674816, while the sum is 62.

The square root of 6994993823 is about 83636.0796725911. The cubic root of 6994993823 is about 1912.4750515378.

The spelling of 6994993823 in words is "six billion, nine hundred ninety-four million, nine hundred ninety-three thousand, eight hundred twenty-three".