68578 has 8 divisors (see below), whose sum is σ = 108972. Its totient is φ = 32256.

The previous prime is 68567. The next prime is 68581. The reversal of 68578 is 87586.

It can be written as a sum of positive squares in 2 ways, for example, as 61009 + 7569 = 247^2 + 87^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 2017 = 68578 / (6 + 8 + 5 + 7 + 8).

It is a congruent number.

It is an unprimeable number.

68578 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 975 + ... + 1042.

2⁶⁸⁵⁷⁸ is an apocalyptic number.

68578 is a deficient number, since it is larger than the sum of its proper divisors (40394).

68578 is a wasteful number, since it uses less digits than its factorization.

68578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036.

The product of its digits is 13440, while the sum is 34.

The square root of 68578 is about 261.8740155113. The cubic root of 68578 is about 40.9318717861.

It can be divided in two parts, 68 and 578, that multiplied together give a cube (39304 = 34³).

The spelling of 68578 in words is "sixty-eight thousand, five hundred seventy-eight".