65078 has 8 divisors (see below), whose sum is σ = 105168. Its totient is φ = 30024.

The previous prime is 65071. The next prime is 65089. The reversal of 65078 is 87056.

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 (26), and also a Moran number because the ratio is a prime number: 2503 = 65078 / (6 + 5 + 0 + 7 + 8).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65071) by changing a digit.

65078 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1226 + ... + 1277.

It is an arithmetic number, because the mean of its divisors is an integer number (13146).

2⁶⁵⁰⁷⁸ is an apocalyptic number.

65078 is a deficient number, since it is larger than the sum of its proper divisors (40090).

65078 is a wasteful number, since it uses less digits than its factorization.

65078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 65078 is about 255.1039004014. The cubic root of 65078 is about 40.2233340600.

The spelling of 65078 in words is "sixty-five thousand, seventy-eight".