68590919 has 2 divisors, whose sum is σ = 68590920. Its totient is φ = 68590918.

The previous prime is 68590871. The next prime is 68590939. The reversal of 68590919 is 91909586.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68590919 is a prime.

It is a super-3 number, since 3×68590919³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68590939) 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, 34295459 + 34295460.

It is an arithmetic number, because the mean of its divisors is an integer number (34295460).

Almost surely, 2^68590919 is an apocalyptic number.

68590919 is a deficient number, since it is larger than the sum of its proper divisors (1).

68590919 is an equidigital number, since it uses as much as digits as its factorization.

68590919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174960, while the sum is 47.

The square root of 68590919 is about 8281.9634749255. The cubic root of 68590919 is about 409.3444192839.

The spelling of 68590919 in words is "sixty-eight million, five hundred ninety thousand, nine hundred nineteen".