675745669 has 2 divisors, whose sum is σ = 675745670. Its totient is φ = 675745668.

The previous prime is 675745643. The next prime is 675745673. The reversal of 675745669 is 966547576.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 472540644 + 203205025 = 21738^2 + 14255^2 .

It is a cyclic number.

It is not a de Polignac number, because 675745669 - 2⁹ = 675745157 is a prime.

It is a super-2 number, since 2×675745669² = 913264418344515122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (675745639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337872834 + 337872835.

It is an arithmetic number, because the mean of its divisors is an integer number (337872835).

Almost surely, 2^675745669 is an apocalyptic number.

It is an amenable number.

675745669 is a deficient number, since it is larger than the sum of its proper divisors (1).

675745669 is an equidigital number, since it uses as much as digits as its factorization.

675745669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9525600, while the sum is 55.

The square root of 675745669 is about 25995.1085591117. The cubic root of 675745669 is about 877.5282173160.

The spelling of 675745669 in words is "six hundred seventy-five million, seven hundred forty-five thousand, six hundred sixty-nine".