2172064727 has 8 divisors (see below), whose sum is σ = 2482962336. Its totient is φ = 1861317792.

The previous prime is 2172064717. The next prime is 2172064747. The reversal of 2172064727 is 7274602712.

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 2172064727 - 2⁸ = 2172064471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172064717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4868 + ... + 66089.

It is an arithmetic number, because the mean of its divisors is an integer number (310370292).

Almost surely, 2^2172064727 is an apocalyptic number.

2172064727 is a deficient number, since it is larger than the sum of its proper divisors (310897609).

2172064727 is an equidigital number, since it uses as much as digits as its factorization.

2172064727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75337.

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 2172064727 is about 46605.4152111104. The cubic root of 2172064727 is about 1295.0630752957.

The spelling of 2172064727 in words is "two billion, one hundred seventy-two million, sixty-four thousand, seven hundred twenty-seven".