68459 has 4 divisors (see below), whose sum is σ = 72504. Its totient is φ = 64416.

The previous prime is 68449. The next prime is 68473. The reversal of 68459 is 95486.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95486 = 2 ⋅47743.

It is a cyclic number.

It is not a de Polignac number, because 68459 - 2⁴ = 68443 is a prime.

It is an Ulam number.

It is a Duffinian number.

68459 is a modest number, since divided by 459 gives 68 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68449) 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, 1997 + ... + 2030.

It is an arithmetic number, because the mean of its divisors is an integer number (18126).

2⁶⁸⁴⁵⁹ is an apocalyptic number.

68459 is a deficient number, since it is larger than the sum of its proper divisors (4045).

68459 is a wasteful number, since it uses less digits than its factorization.

68459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4044.

The product of its digits is 8640, while the sum is 32.

The square root of 68459 is about 261.6467083684. The cubic root of 68459 is about 40.9081823966.

The spelling of 68459 in words is "sixty-eight thousand, four hundred fifty-nine".