6674563997 has 2 divisors, whose sum is σ = 6674563998. Its totient is φ = 6674563996.

The previous prime is 6674563949. The next prime is 6674564003. The reversal of 6674563997 is 7993654766.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6643717081 + 30846916 = 81509^2 + 5554^2 .

It is a cyclic number.

It is not a de Polignac number, because 6674563997 - 2¹² = 6674559901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6674563937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3337281998 + 3337281999.

It is an arithmetic number, because the mean of its divisors is an integer number (3337281999).

Almost surely, 2^6674563997 is an apocalyptic number.

It is an amenable number.

6674563997 is a deficient number, since it is larger than the sum of its proper divisors (1).

6674563997 is an equidigital number, since it uses as much as digits as its factorization.

6674563997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51438240, while the sum is 62.

The square root of 6674563997 is about 81698.0048532398. The cubic root of 6674563997 is about 1882.8149317407.

The spelling of 6674563997 in words is "six billion, six hundred seventy-four million, five hundred sixty-three thousand, nine hundred ninety-seven".