68748523 has 2 divisors, whose sum is σ = 68748524. Its totient is φ = 68748522.

The previous prime is 68748521. The next prime is 68748551. The reversal of 68748523 is 32584786.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68748523 - 2¹ = 68748521 is a prime.

Together with 68748521, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 68748523.

It is not a weakly prime, because it can be changed into another prime (68748521) 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, 34374261 + 34374262.

It is an arithmetic number, because the mean of its divisors is an integer number (34374262).

Almost surely, 2^68748523 is an apocalyptic number.

68748523 is a deficient number, since it is larger than the sum of its proper divisors (1).

68748523 is an equidigital number, since it uses as much as digits as its factorization.

68748523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 43.

The square root of 68748523 is about 8291.4729089589. The cubic root of 68748523 is about 409.6577016126.

The spelling of 68748523 in words is "sixty-eight million, seven hundred forty-eight thousand, five hundred twenty-three".