68117573 has 2 divisors, whose sum is σ = 68117574. Its totient is φ = 68117572.

The previous prime is 68117563. The next prime is 68117579. The reversal of 68117573 is 37571186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64609444 + 3508129 = 8038^2 + 1873^2 .

It is a cyclic number.

It is not a de Polignac number, because 68117573 - 2¹⁸ = 67855429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68117579) 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, 34058786 + 34058787.

It is an arithmetic number, because the mean of its divisors is an integer number (34058787).

Almost surely, 2^68117573 is an apocalyptic number.

It is an amenable number.

68117573 is a deficient number, since it is larger than the sum of its proper divisors (1).

68117573 is an equidigital number, since it uses as much as digits as its factorization.

68117573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 38.

The square root of 68117573 is about 8253.3370826594. The cubic root of 68117573 is about 408.4006161331.

The spelling of 68117573 in words is "sixty-eight million, one hundred seventeen thousand, five hundred seventy-three".