172328063 has 4 divisors (see below), whose sum is σ = 178270440. Its totient is φ = 166385688.

The previous prime is 172328021. The next prime is 172328077. The reversal of 172328063 is 360823271.

It is a happy number.

172328063 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 360823271 = 2791 ⋅129281.

It is a cyclic number.

It is not a de Polignac number, because 172328063 - 2⁶ = 172327999 is a prime.

It is a super-2 number, since 2×172328063² = 59393922594663938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172321063) 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, 2971145 + ... + 2971202.

It is an arithmetic number, because the mean of its divisors is an integer number (44567610).

Almost surely, 2^172328063 is an apocalyptic number.

172328063 is a deficient number, since it is larger than the sum of its proper divisors (5942377).

172328063 is an equidigital number, since it uses as much as digits as its factorization.

172328063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5942376.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 172328063 is about 13127.3783749841. The cubic root of 172328063 is about 556.4831288425.

The spelling of 172328063 in words is "one hundred seventy-two million, three hundred twenty-eight thousand, sixty-three".