712299505 has 4 divisors (see below), whose sum is σ = 854759412. Its totient is φ = 569839600.

The previous prime is 712299499. The next prime is 712299509. The reversal of 712299505 is 505992217.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 317124864 + 395174641 = 17808^2 + 19879^2 .

It is not a de Polignac number, because 712299505 - 2²³ = 703910897 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 (712299509) 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 3 ways as a sum of consecutive naturals, for example, 71229946 + ... + 71229955.

It is an arithmetic number, because the mean of its divisors is an integer number (213689853).

Almost surely, 2^712299505 is an apocalyptic number.

It is an amenable number.

712299505 is a deficient number, since it is larger than the sum of its proper divisors (142459907).

712299505 is a wasteful number, since it uses less digits than its factorization.

712299505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142459906.

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 712299505 is about 26688.9397503910. The cubic root of 712299505 is about 893.0742088194.

The spelling of 712299505 in words is "seven hundred twelve million, two hundred ninety-nine thousand, five hundred five".