68106589 has 4 divisors (see below), whose sum is σ = 68463360. Its totient is φ = 67749820.

The previous prime is 68106551. The next prime is 68106593. The reversal of 68106589 is 98560186.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68106589 - 2⁷ = 68106461 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 (68106989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178099 + ... + 178480.

It is an arithmetic number, because the mean of its divisors is an integer number (17115840).

Almost surely, 2^68106589 is an apocalyptic number.

It is an amenable number.

68106589 is a deficient number, since it is larger than the sum of its proper divisors (356771).

68106589 is a wasteful number, since it uses less digits than its factorization.

68106589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356770.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 68106589 is about 8252.6716280245. The cubic root of 68106589 is about 408.3786633373.

The spelling of 68106589 in words is "sixty-eight million, one hundred six thousand, five hundred eighty-nine".