705228 has 24 divisors (see below), whose sum is σ = 1742832. Its totient is φ = 221184.

The previous prime is 705209. The next prime is 705247. The reversal of 705228 is 822507.

It is an interprime number because it is at equal distance from previous prime (705209) and next prime (705247).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 705198 and 705207.

It is an unprimeable number.

705228 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1525 + ... + 1932.

It is an arithmetic number, because the mean of its divisors is an integer number (72618).

2⁷⁰⁵²²⁸ is an apocalyptic number.

It is an amenable number.

705228 is an abundant number, since it is smaller than the sum of its proper divisors (1037604).

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

705228 is a wasteful number, since it uses less digits than its factorization.

705228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3481 (or 3479 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 705228 is about 839.7785422360. The cubic root of 705228 is about 89.0108979627.

The spelling of 705228 in words is "seven hundred five thousand, two hundred twenty-eight".