172873027 has 2 divisors, whose sum is σ = 172873028. Its totient is φ = 172873026.

The previous prime is 172872989. The next prime is 172873033. The reversal of 172873027 is 720378271.

172873027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172873027 - 2²⁷ = 38655299 is a prime.

It is not a weakly prime, because it can be changed into another prime (172873087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86436513 + 86436514.

It is an arithmetic number, because the mean of its divisors is an integer number (86436514).

Almost surely, 2^172873027 is an apocalyptic number.

172873027 is a deficient number, since it is larger than the sum of its proper divisors (1).

172873027 is an equidigital number, since it uses as much as digits as its factorization.

172873027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 172873027 is about 13148.1187627736. The cubic root of 172873027 is about 557.0691122487.

The spelling of 172873027 in words is "one hundred seventy-two million, eight hundred seventy-three thousand, twenty-seven".