578878 has 4 divisors (see below), whose sum is σ = 868320. Its totient is φ = 289438.

The previous prime is 578861. The next prime is 578881. The reversal of 578878 is 878875.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

578878 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 as a sum of consecutive naturals, namely, 144718 + ... + 144721.

It is an arithmetic number, because the mean of its divisors is an integer number (217080).

2⁵⁷⁸⁸⁷⁸ is an apocalyptic number.

578878 is a deficient number, since it is larger than the sum of its proper divisors (289442).

578878 is a wasteful number, since it uses less digits than its factorization.

578878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289441.

The product of its digits is 125440, while the sum is 43.

The square root of 578878 is about 760.8403249040. The cubic root of 578878 is about 83.3416987158.

The spelling of 578878 in words is "five hundred seventy-eight thousand, eight hundred seventy-eight".