675666799 has 2 divisors, whose sum is σ = 675666800. Its totient is φ = 675666798.

The previous prime is 675666779. The next prime is 675666931. The reversal of 675666799 is 997666576.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 675666799 - 2⁵ = 675666767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (675666779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337833399 + 337833400.

It is an arithmetic number, because the mean of its divisors is an integer number (337833400).

Almost surely, 2^675666799 is an apocalyptic number.

675666799 is a deficient number, since it is larger than the sum of its proper divisors (1).

675666799 is an equidigital number, since it uses as much as digits as its factorization.

675666799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25719120, while the sum is 61.

The square root of 675666799 is about 25993.5914986752. The cubic root of 675666799 is about 877.4940756033.

The spelling of 675666799 in words is "six hundred seventy-five million, six hundred sixty-six thousand, seven hundred ninety-nine".