675640117 has 2 divisors, whose sum is σ = 675640118. Its totient is φ = 675640116.

The previous prime is 675640103. The next prime is 675640159. The reversal of 675640117 is 711046576.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 630562321 + 45077796 = 25111^2 + 6714^2 .

It is a cyclic number.

It is not a de Polignac number, because 675640117 - 2²³ = 667251509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (675640177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337820058 + 337820059.

It is an arithmetic number, because the mean of its divisors is an integer number (337820059).

Almost surely, 2^675640117 is an apocalyptic number.

It is an amenable number.

675640117 is a deficient number, since it is larger than the sum of its proper divisors (1).

675640117 is an equidigital number, since it uses as much as digits as its factorization.

675640117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 675640117 is about 25993.0782517192. The cubic root of 675640117 is about 877.4825247397.

The spelling of 675640117 in words is "six hundred seventy-five million, six hundred forty thousand, one hundred seventeen".