578222 has 4 divisors (see below), whose sum is σ = 867336. Its totient is φ = 289110.

The previous prime is 578213. The next prime is 578251. The reversal of 578222 is 222875.

578222 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 junction number, because it is equal to n+sod(n) for n = 578191 and 578200.

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, 144554 + ... + 144557.

It is an arithmetic number, because the mean of its divisors is an integer number (216834).

2⁵⁷⁸²²² is an apocalyptic number.

578222 is a deficient number, since it is larger than the sum of its proper divisors (289114).

578222 is a wasteful number, since it uses less digits than its factorization.

578222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289113.

The product of its digits is 2240, while the sum is 26.

The square root of 578222 is about 760.4091004190. The cubic root of 578222 is about 83.3102051372.

The spelling of 578222 in words is "five hundred seventy-eight thousand, two hundred twenty-two".