76578 has 8 divisors (see below), whose sum is σ = 153168. Its totient is φ = 25524.

The previous prime is 76561. The next prime is 76579. The reversal of 76578 is 87567.

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

76578 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (76579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6376 + ... + 6387.

It is an arithmetic number, because the mean of its divisors is an integer number (19146).

2⁷⁶⁵⁷⁸ is an apocalyptic number.

76578 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76584).

76578 is a wasteful number, since it uses less digits than its factorization.

76578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12768.

The product of its digits is 11760, while the sum is 33.

The square root of 76578 is about 276.7273025923. The cubic root of 76578 is about 42.4653466080.

The spelling of 76578 in words is "seventy-six thousand, five hundred seventy-eight".