68078 has 4 divisors (see below), whose sum is σ = 102120. Its totient is φ = 34038.

The previous prime is 68071. The next prime is 68087. The reversal of 68078 is 87086.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87086 = 2 ⋅43543.

It is a super-2 number, since 2×68078² = 9269228168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68071) by changing a digit.

68078 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 as a sum of consecutive naturals, namely, 17018 + ... + 17021.

It is an arithmetic number, because the mean of its divisors is an integer number (25530).

2⁶⁸⁰⁷⁸ is an apocalyptic number.

68078 is a deficient number, since it is larger than the sum of its proper divisors (34042).

68078 is a wasteful number, since it uses less digits than its factorization.

68078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34041.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 68078 is about 260.9176115175. The cubic root of 68078 is about 40.8321513842.

The spelling of 68078 in words is "sixty-eight thousand, seventy-eight".