68088589 has 4 divisors (see below), whose sum is σ = 68585724. Its totient is φ = 67591456.

The previous prime is 68088583. The next prime is 68088611. The reversal of 68088589 is 98588086.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15642025 + 52446564 = 3955^2 + 7242^2 .

It is a cyclic number.

It is not a de Polignac number, because 68088589 - 2¹¹ = 68086541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68088583) 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 in 3 ways as a sum of consecutive naturals, for example, 248362 + ... + 248635.

It is an arithmetic number, because the mean of its divisors is an integer number (17146431).

Almost surely, 2^68088589 is an apocalyptic number.

It is an amenable number.

68088589 is a deficient number, since it is larger than the sum of its proper divisors (497135).

68088589 is a wasteful number, since it uses less digits than its factorization.

68088589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497134.

The product of its (nonzero) digits is 1105920, while the sum is 52.

The square root of 68088589 is about 8251.5810000266. The cubic root of 68088589 is about 408.3426831493.

The spelling of 68088589 in words is "sixty-eight million, eighty-eight thousand, five hundred eighty-nine".