68426753 has 2 divisors, whose sum is σ = 68426754. Its totient is φ = 68426752.

The previous prime is 68426749. The next prime is 68426759. The reversal of 68426753 is 35762486.

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., 66064384 + 2362369 = 8128^2 + 1537^2 .

It is a cyclic number.

It is not a de Polignac number, because 68426753 - 2² = 68426749 is a prime.

It is a super-2 number, since 2×68426753² = 9364441052246018, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68426753.

It is not a weakly prime, because it can be changed into another prime (68426759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34213376 + 34213377.

It is an arithmetic number, because the mean of its divisors is an integer number (34213377).

Almost surely, 2^68426753 is an apocalyptic number.

It is an amenable number.

68426753 is a deficient number, since it is larger than the sum of its proper divisors (1).

68426753 is an equidigital number, since it uses as much as digits as its factorization.

68426753 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 41.

The square root of 68426753 is about 8272.0464819777. The cubic root of 68426753 is about 409.0175824325.

The spelling of 68426753 in words is "sixty-eight million, four hundred twenty-six thousand, seven hundred fifty-three".