68300389 has 2 divisors, whose sum is σ = 68300390. Its totient is φ = 68300388.

The previous prime is 68300369. The next prime is 68300399. The reversal of 68300389 is 98300386.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41602500 + 26697889 = 6450^2 + 5167^2 .

It is a cyclic number.

It is not a de Polignac number, because 68300389 - 2¹⁵ = 68267621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68300369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34150194 + 34150195.

It is an arithmetic number, because the mean of its divisors is an integer number (34150195).

Almost surely, 2^68300389 is an apocalyptic number.

It is an amenable number.

68300389 is a deficient number, since it is larger than the sum of its proper divisors (1).

68300389 is an equidigital number, since it uses as much as digits as its factorization.

68300389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 68300389 is about 8264.4049392561. The cubic root of 68300389 is about 408.7656490687.

The spelling of 68300389 in words is "sixty-eight million, three hundred thousand, three hundred eighty-nine".