68759473 has 2 divisors, whose sum is σ = 68759474. Its totient is φ = 68759472.

The previous prime is 68759459. The next prime is 68759491. The reversal of 68759473 is 37495786.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68757264 + 2209 = 8292^2 + 47^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68759473 is a prime.

It is not a weakly prime, because it can be changed into another prime (68759413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34379736 + 34379737.

It is an arithmetic number, because the mean of its divisors is an integer number (34379737).

Almost surely, 2^68759473 is an apocalyptic number.

It is an amenable number.

68759473 is a deficient number, since it is larger than the sum of its proper divisors (1).

68759473 is an equidigital number, since it uses as much as digits as its factorization.

68759473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 49.

The square root of 68759473 is about 8292.1331996055. The cubic root of 68759473 is about 409.6794500250.

The spelling of 68759473 in words is "sixty-eight million, seven hundred fifty-nine thousand, four hundred seventy-three".