173704228 has 18 divisors (see below), whose sum is σ = 306930806. Its totient is φ = 86017728.

The previous prime is 173704217. The next prime is 173704231. The reversal of 173704228 is 822407371.

173704228 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 123832384 + 49871844 = 11128^2 + 7062^2 .

It is a junction number, because it is equal to n+sod(n) for n = 173704193 and 173704202.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43900 + ... + 47692.

Almost surely, 2^173704228 is an apocalyptic number.

It is an amenable number.

173704228 is a deficient number, since it is larger than the sum of its proper divisors (133226578).

173704228 is a wasteful number, since it uses less digits than its factorization.

173704228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4011 (or 3902 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 173704228 is about 13179.6899811794. The cubic root of 173704228 is about 557.9605107309.

The spelling of 173704228 in words is "one hundred seventy-three million, seven hundred four thousand, two hundred twenty-eight".