578998 has 8 divisors (see below), whose sum is σ = 992592. Its totient is φ = 248136.

The previous prime is 578971. The next prime is 578999. The reversal of 578998 is 899875.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (578999) by changing a digit.

578998 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, 20665 + ... + 20692.

It is an arithmetic number, because the mean of its divisors is an integer number (124074).

2⁵⁷⁸⁹⁹⁸ is an apocalyptic number.

578998 is a deficient number, since it is larger than the sum of its proper divisors (413594).

578998 is a wasteful number, since it uses less digits than its factorization.

578998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41366.

The product of its digits is 181440, while the sum is 46.

The square root of 578998 is about 760.9191809910. The cubic root of 578998 is about 83.3474571616.

It can be divided in two parts, 5 and 78998, that added together give a triangular number (79003 = T₃₉₇).

The spelling of 578998 in words is "five hundred seventy-eight thousand, nine hundred ninety-eight".