68859589 has 2 divisors, whose sum is σ = 68859590. Its totient is φ = 68859588.

The previous prime is 68859533. The next prime is 68859599. The reversal of 68859589 is 98595886.

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., 60186564 + 8673025 = 7758^2 + 2945^2 .

It is a cyclic number.

It is not a de Polignac number, because 68859589 - 2²³ = 60470981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68859509) 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, 34429794 + 34429795.

It is an arithmetic number, because the mean of its divisors is an integer number (34429795).

Almost surely, 2^68859589 is an apocalyptic number.

It is an amenable number.

68859589 is a deficient number, since it is larger than the sum of its proper divisors (1).

68859589 is an equidigital number, since it uses as much as digits as its factorization.

68859589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6220800, while the sum is 58.

The square root of 68859589 is about 8298.1678098240. The cubic root of 68859589 is about 409.8781890763.

The spelling of 68859589 in words is "sixty-eight million, eight hundred fifty-nine thousand, five hundred eighty-nine".