506693709 has 6 divisors (see below), whose sum is σ = 731890926. Its totient is φ = 337795800.

The previous prime is 506693659. The next prime is 506693717. The reversal of 506693709 is 907396605.

It can be written as a sum of positive squares in only one way, i.e., 318729609 + 187964100 = 17853^2 + 13710^2 .

It is not a de Polignac number, because 506693709 - 2⁷ = 506693581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506693309) 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, 28149642 + ... + 28149659.

It is an arithmetic number, because the mean of its divisors is an integer number (121981821).

Almost surely, 2^506693709 is an apocalyptic number.

It is an amenable number.

506693709 is a deficient number, since it is larger than the sum of its proper divisors (225197217).

506693709 is a wasteful number, since it uses less digits than its factorization.

506693709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56299307 (or 56299304 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 45.

The square root of 506693709 is about 22509.8580404231. The cubic root of 506693709 is about 797.2267039162.

The spelling of 506693709 in words is "five hundred six million, six hundred ninety-three thousand, seven hundred nine".