6994554997 has 2 divisors, whose sum is σ = 6994554998. Its totient is φ = 6994554996.

The previous prime is 6994554913. The next prime is 6994555013. The reversal of 6994554997 is 7994554996.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3799366321 + 3195188676 = 61639^2 + 56526^2 .

It is a cyclic number.

It is not a de Polignac number, because 6994554997 - 2³¹ = 4847071349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6994554097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3497277498 + 3497277499.

It is an arithmetic number, because the mean of its divisors is an integer number (3497277499).

Almost surely, 2^6994554997 is an apocalyptic number.

It is an amenable number.

6994554997 is a deficient number, since it is larger than the sum of its proper divisors (1).

6994554997 is an equidigital number, since it uses as much as digits as its factorization.

6994554997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110224800, while the sum is 67.

The square root of 6994554997 is about 83633.4562062336. The cubic root of 6994554997 is about 1912.4350581107.

Subtracting 6994554997 from its reverse (7994554996), we obtain a palindrome (999999999).

The spelling of 6994554997 in words is "six billion, nine hundred ninety-four million, five hundred fifty-four thousand, nine hundred ninety-seven".