68906603 has 2 divisors, whose sum is σ = 68906604. Its totient is φ = 68906602.

The previous prime is 68906599. The next prime is 68906623. The reversal of 68906603 is 30660986.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68906603 - 2² = 68906599 is a prime.

It is a Chen prime.

It is equal to p_4057499 and since 68906603 and 4057499 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (68906623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34453301 + 34453302.

It is an arithmetic number, because the mean of its divisors is an integer number (34453302).

Almost surely, 2^68906603 is an apocalyptic number.

68906603 is a deficient number, since it is larger than the sum of its proper divisors (1).

68906603 is an equidigital number, since it uses as much as digits as its factorization.

68906603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 68906603 is about 8301.0001204674. Note that the first 3 decimals coincide. The cubic root of 68906603 is about 409.9714495289.

The spelling of 68906603 in words is "sixty-eight million, nine hundred six thousand, six hundred three".