578778 has 16 divisors (see below), whose sum is σ = 1218720. Its totient is φ = 182736.

The previous prime is 578777. The next prime is 578779. The reversal of 578778 is 877875.

578778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (578777) and next prime (578779).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (578777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2425 + ... + 2652.

It is an arithmetic number, because the mean of its divisors is an integer number (76170).

2⁵⁷⁸⁷⁷⁸ is an apocalyptic number.

578778 is an abundant number, since it is smaller than the sum of its proper divisors (639942).

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

578778 is a wasteful number, since it uses less digits than its factorization.

578778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5101.

The product of its digits is 109760, while the sum is 42.

The square root of 578778 is about 760.7746052544. The cubic root of 578778 is about 83.3368994030.

The spelling of 578778 in words is "five hundred seventy-eight thousand, seven hundred seventy-eight".