68090903 has 2 divisors, whose sum is σ = 68090904. Its totient is φ = 68090902.

The previous prime is 68090863. The next prime is 68090977. The reversal of 68090903 is 30909086.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68090903 - 2¹⁴ = 68074519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68098903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34045451 + 34045452.

It is an arithmetic number, because the mean of its divisors is an integer number (34045452).

Almost surely, 2^68090903 is an apocalyptic number.

68090903 is a deficient number, since it is larger than the sum of its proper divisors (1).

68090903 is an equidigital number, since it uses as much as digits as its factorization.

68090903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 68090903 is about 8251.7212143892. The cubic root of 68090903 is about 408.3473089575.

Adding to 68090903 its reverse (30909086), we get a palindrome (98999989).

The spelling of 68090903 in words is "sixty-eight million, ninety thousand, nine hundred three".