68479753 has 2 divisors, whose sum is σ = 68479754. Its totient is φ = 68479752.

The previous prime is 68479751. The next prime is 68479777. The reversal of 68479753 is 35797486.

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., 43599609 + 24880144 = 6603^2 + 4988^2 .

It is a cyclic number.

It is not a de Polignac number, because 68479753 - 2¹ = 68479751 is a prime.

Together with 68479751, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 68479697 and 68479706.

It is not a weakly prime, because it can be changed into another prime (68479751) 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, 34239876 + 34239877.

It is an arithmetic number, because the mean of its divisors is an integer number (34239877).

Almost surely, 2^68479753 is an apocalyptic number.

It is an amenable number.

68479753 is a deficient number, since it is larger than the sum of its proper divisors (1).

68479753 is an equidigital number, since it uses as much as digits as its factorization.

68479753 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 68479753 is about 8275.2494222229. The cubic root of 68479753 is about 409.1231568189.

The spelling of 68479753 in words is "sixty-eight million, four hundred seventy-nine thousand, seven hundred fifty-three".