172000027 has 8 divisors (see below), whose sum is σ = 181258560. Its totient is φ = 162762120.

The previous prime is 172000021. The next prime is 172000057. The reversal of 172000027 is 720000271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 172000027 - 2³ = 172000019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 171999968 and 172000013.

It is not an unprimeable number, because it can be changed into a prime (172000021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13788 + ... + 23110.

It is an arithmetic number, because the mean of its divisors is an integer number (22657320).

Almost surely, 2^172000027 is an apocalyptic number.

172000027 is a deficient number, since it is larger than the sum of its proper divisors (9258533).

172000027 is an equidigital number, since it uses as much as digits as its factorization.

172000027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10313.

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 172000027 is about 13114.8780779693. The cubic root of 172000027 is about 556.1298057519.

Adding to 172000027 its reverse (720000271), we get a palindrome (892000298).

The spelling of 172000027 in words is "one hundred seventy-two million, twenty-seven", and thus it is an aban number.