173913228 has 18 divisors (see below), whose sum is σ = 439614084. Its totient is φ = 57971064.

The previous prime is 173913217. The next prime is 173913239. The reversal of 173913228 is 822319371.

173913228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (173913217) and next prime (173913239).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4830923 = 173913228 / (1 + 7 + 3 + 9 + 1 + 3 + 2 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 173913192 and 173913201.

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, 2415426 + ... + 2415497.

Almost surely, 2^173913228 is an apocalyptic number.

173913228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

173913228 is an abundant number, since it is smaller than the sum of its proper divisors (265700856).

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

173913228 is a wasteful number, since it uses less digits than its factorization.

173913228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4830933 (or 4830928 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 173913228 is about 13187.6164639407. The cubic root of 173913228 is about 558.1841994107.

The spelling of 173913228 in words is "one hundred seventy-three million, nine hundred thirteen thousand, two hundred twenty-eight".