68261603 has 2 divisors, whose sum is σ = 68261604. Its totient is φ = 68261602.

The previous prime is 68261593. The next prime is 68261617. The reversal of 68261603 is 30616286.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68261603 - 2⁴ = 68261587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68261603.

It is not a weakly prime, because it can be changed into another prime (68261663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34130801 + 34130802.

It is an arithmetic number, because the mean of its divisors is an integer number (34130802).

Almost surely, 2^68261603 is an apocalyptic number.

68261603 is a deficient number, since it is larger than the sum of its proper divisors (1).

68261603 is an equidigital number, since it uses as much as digits as its factorization.

68261603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 68261603 is about 8262.0580365911. The cubic root of 68261603 is about 408.6882586529.

Adding to 68261603 its reverse (30616286), we get a palindrome (98877889).

The spelling of 68261603 in words is "sixty-eight million, two hundred sixty-one thousand, six hundred three".