506712649 has 4 divisors (see below), whose sum is σ = 508173264. Its totient is φ = 505252036.

The previous prime is 506712623. The next prime is 506712671. The reversal of 506712649 is 946217605.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 506712649 - 2¹⁷ = 506581577 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506712449) 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, 729787 + ... + 730480.

It is an arithmetic number, because the mean of its divisors is an integer number (127043316).

Almost surely, 2^506712649 is an apocalyptic number.

It is an amenable number.

506712649 is a deficient number, since it is larger than the sum of its proper divisors (1460615).

506712649 is a wasteful number, since it uses less digits than its factorization.

506712649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460614.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 506712649 is about 22510.2787410552. The cubic root of 506712649 is about 797.2366371266.

The spelling of 506712649 in words is "five hundred six million, seven hundred twelve thousand, six hundred forty-nine".