68289 has 16 divisors (see below), whose sum is σ = 104832. Its totient is φ = 39168.

The previous prime is 68281. The next prime is 68311. The reversal of 68289 is 98286.

68289 = T₈₁ + T₈₂ + ... + T₉₇.

It is not a de Polignac number, because 68289 - 2³ = 68281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 612 + ... + 714.

It is an arithmetic number, because the mean of its divisors is an integer number (6552).

2⁶⁸²⁸⁹ is an apocalyptic number.

It is an amenable number.

68289 is a deficient number, since it is larger than the sum of its proper divisors (36543).

68289 is a wasteful number, since it uses less digits than its factorization.

68289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136.

The product of its digits is 6912, while the sum is 33.

The square root of 68289 is about 261.3216408949. The cubic root of 68289 is about 40.8742927428.

The spelling of 68289 in words is "sixty-eight thousand, two hundred eighty-nine".