68907589 has 2 divisors, whose sum is σ = 68907590. Its totient is φ = 68907588.

The previous prime is 68907551. The next prime is 68907649. The reversal of 68907589 is 98570986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63075364 + 5832225 = 7942^2 + 2415^2 .

It is a cyclic number.

It is not a de Polignac number, because 68907589 - 2⁹ = 68907077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68907689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34453794 + 34453795.

It is an arithmetic number, because the mean of its divisors is an integer number (34453795).

Almost surely, 2^68907589 is an apocalyptic number.

It is an amenable number.

68907589 is a deficient number, since it is larger than the sum of its proper divisors (1).

68907589 is an equidigital number, since it uses as much as digits as its factorization.

68907589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The square root of 68907589 is about 8301.0595106890. The cubic root of 68907589 is about 409.9734049773.

It can be divided in two parts, 68907 and 589, that added together give a palindrome (69496).

The spelling of 68907589 in words is "sixty-eight million, nine hundred seven thousand, five hundred eighty-nine".