675813617 has 2 divisors, whose sum is σ = 675813618. Its totient is φ = 675813616.

The previous prime is 675813559. The next prime is 675813629. The reversal of 675813617 is 716318576.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 530104576 + 145709041 = 23024^2 + 12071^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-675813617 is a prime.

It is not a weakly prime, because it can be changed into another prime (675413617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337906808 + 337906809.

It is an arithmetic number, because the mean of its divisors is an integer number (337906809).

Almost surely, 2^675813617 is an apocalyptic number.

It is an amenable number.

675813617 is a deficient number, since it is larger than the sum of its proper divisors (1).

675813617 is an equidigital number, since it uses as much as digits as its factorization.

675813617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 44.

The square root of 675813617 is about 25996.4154644443. The cubic root of 675813617 is about 877.5576289184.

The spelling of 675813617 in words is "six hundred seventy-five million, eight hundred thirteen thousand, six hundred seventeen".