675321917 has 2 divisors, whose sum is σ = 675321918. Its totient is φ = 675321916.

The previous prime is 675321893. The next prime is 675321937. The reversal of 675321917 is 719123576.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 630311236 + 45010681 = 25106^2 + 6709^2 .

It is a cyclic number.

It is not a de Polignac number, because 675321917 - 2⁶ = 675321853 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (675321937) 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, 337660958 + 337660959.

It is an arithmetic number, because the mean of its divisors is an integer number (337660959).

Almost surely, 2^675321917 is an apocalyptic number.

It is an amenable number.

675321917 is a deficient number, since it is larger than the sum of its proper divisors (1).

675321917 is an equidigital number, since it uses as much as digits as its factorization.

675321917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79380, while the sum is 41.

The square root of 675321917 is about 25986.9566706069. The cubic root of 675321917 is about 877.3447498223.

The spelling of 675321917 in words is "six hundred seventy-five million, three hundred twenty-one thousand, nine hundred seventeen".