7173228 has 12 divisors (see below), whose sum is σ = 16737560. Its totient is φ = 2391072.

The previous prime is 7173209. The next prime is 7173233. The reversal of 7173228 is 8223717.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 7173195 and 7173204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298873 + ... + 298896.

Almost surely, 2^7173228 is an apocalyptic number.

It is an amenable number.

7173228 is an abundant number, since it is smaller than the sum of its proper divisors (9564332).

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

7173228 is a wasteful number, since it uses less digits than its factorization.

7173228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597776 (or 597774 counting only the distinct ones).

The product of its digits is 4704, while the sum is 30.

The square root of 7173228 is about 2678.2882593179. The cubic root of 7173228 is about 192.8582455747.

It can be divided in two parts, 717 and 3228, that multiplied together give a triangular number (2314476 = T₂₁₅₁).

The spelling of 7173228 in words is "seven million, one hundred seventy-three thousand, two hundred twenty-eight".