578278 has 4 divisors (see below), whose sum is σ = 867420. Its totient is φ = 289138.

The previous prime is 578267. The next prime is 578297. The reversal of 578278 is 872875.

578278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144568 + ... + 144571.

It is an arithmetic number, because the mean of its divisors is an integer number (216855).

2⁵⁷⁸²⁷⁸ is an apocalyptic number.

578278 is a deficient number, since it is larger than the sum of its proper divisors (289142).

578278 is a wasteful number, since it uses less digits than its factorization.

578278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289141.

The product of its digits is 31360, while the sum is 37.

The square root of 578278 is about 760.4459218117. The cubic root of 578278 is about 83.3128945430.

The spelling of 578278 in words is "five hundred seventy-eight thousand, two hundred seventy-eight".