68617 has 4 divisors (see below), whose sum is σ = 69840. Its totient is φ = 67396.

The previous prime is 68611. The next prime is 68633. The reversal of 68617 is 71686.

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 68617 - 2⁷ = 68489 is a prime.

It is a super-3 number, since 3×68617³ = 969206758323339, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523 + ... + 640.

It is an arithmetic number, because the mean of its divisors is an integer number (17460).

2⁶⁸⁶¹⁷ is an apocalyptic number.

It is an amenable number.

68617 is a deficient number, since it is larger than the sum of its proper divisors (1223).

68617 is a wasteful number, since it uses less digits than its factorization.

68617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222.

The product of its digits is 2016, while the sum is 28.

The square root of 68617 is about 261.9484682146. The cubic root of 68617 is about 40.9396295728.

It can be divided in two parts, 686 and 17, that added together give a triangular number (703 = T₃₇).

The spelling of 68617 in words is "sixty-eight thousand, six hundred seventeen".