173428027 has 4 divisors (see below), whose sum is σ = 180968400. Its totient is φ = 165887656.

The previous prime is 173427971. The next prime is 173428037. The reversal of 173428027 is 720824371.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 720824371 = 641 ⋅1124531.

It is a cyclic number.

It is not a de Polignac number, because 173428027 - 2¹¹ = 173425979 is a prime.

It is a super-2 number, since 2×173428027² = 60154561098225458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 173427983 and 173428001.

It is not an unprimeable number, because it can be changed into a prime (173428037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3770152 + ... + 3770197.

It is an arithmetic number, because the mean of its divisors is an integer number (45242100).

Almost surely, 2^173428027 is an apocalyptic number.

173428027 is a deficient number, since it is larger than the sum of its proper divisors (7540373).

173428027 is an equidigital number, since it uses as much as digits as its factorization.

173428027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7540372.

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

The square root of 173428027 is about 13169.2075312070. The cubic root of 173428027 is about 557.6646227028.

The spelling of 173428027 in words is "one hundred seventy-three million, four hundred twenty-eight thousand, twenty-seven".