68758297 has 4 divisors (see below), whose sum is σ = 68775460. Its totient is φ = 68741136.

The previous prime is 68758289. The next prime is 68758301. The reversal of 68758297 is 79285786.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44836416 + 23921881 = 6696^2 + 4891^2 .

It is a cyclic number.

It is not a de Polignac number, because 68758297 - 2³ = 68758289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68753297) 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 in 3 ways as a sum of consecutive naturals, for example, 979 + ... + 11767.

It is an arithmetic number, because the mean of its divisors is an integer number (17193865).

Almost surely, 2^68758297 is an apocalyptic number.

It is an amenable number.

68758297 is a deficient number, since it is larger than the sum of its proper divisors (17163).

68758297 is a wasteful number, since it uses less digits than its factorization.

68758297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17162.

The product of its digits is 1693440, while the sum is 52.

The square root of 68758297 is about 8292.0622887193. The cubic root of 68758297 is about 409.6771144158.

The spelling of 68758297 in words is "sixty-eight million, seven hundred fifty-eight thousand, two hundred ninety-seven".