68335403 has 2 divisors, whose sum is σ = 68335404. Its totient is φ = 68335402.

The previous prime is 68335387. The next prime is 68335409. The reversal of 68335403 is 30453386.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68335403 - 2⁴ = 68335387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68335403.

It is not a weakly prime, because it can be changed into another prime (68335409) 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, 34167701 + 34167702.

It is an arithmetic number, because the mean of its divisors is an integer number (34167702).

Almost surely, 2^68335403 is an apocalyptic number.

68335403 is a deficient number, since it is larger than the sum of its proper divisors (1).

68335403 is an equidigital number, since it uses as much as digits as its factorization.

68335403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 68335403 is about 8266.5230296661. The cubic root of 68335403 is about 408.8354879846.

Adding to 68335403 its reverse (30453386), we get a palindrome (98788789).

The spelling of 68335403 in words is "sixty-eight million, three hundred thirty-five thousand, four hundred three".