506672217 has 6 divisors (see below), whose sum is σ = 731859882. Its totient is φ = 337781472.

The previous prime is 506672203. The next prime is 506672227. The reversal of 506672217 is 712276605.

It can be written as a sum of positive squares in only one way, i.e., 277422336 + 229249881 = 16656^2 + 15141^2 .

It is a de Polignac number, because none of the positive numbers 2^k-506672217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (506672227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28148448 + ... + 28148465.

It is an arithmetic number, because the mean of its divisors is an integer number (121976647).

Almost surely, 2^506672217 is an apocalyptic number.

It is an amenable number.

506672217 is a deficient number, since it is larger than the sum of its proper divisors (225187665).

506672217 is a wasteful number, since it uses less digits than its factorization.

506672217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56296919 (or 56296916 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 506672217 is about 22509.3806445224. The cubic root of 506672217 is about 797.2154319924.

The spelling of 506672217 in words is "five hundred six million, six hundred seventy-two thousand, two hundred seventeen".