712282217 has 4 divisors (see below), whose sum is σ = 729654996. Its totient is φ = 694909440.

The previous prime is 712282213. The next prime is 712282231.

712282217 is nontrivially palindromic in base 10.

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 90079081 + 622203136 = 9491^2 + 24944^2 .

It is a cyclic number.

It is not a de Polignac number, because 712282217 - 2² = 712282213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (712282213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8686328 + ... + 8686409.

It is an arithmetic number, because the mean of its divisors is an integer number (182413749).

Almost surely, 2^712282217 is an apocalyptic number.

It is an amenable number.

712282217 is a deficient number, since it is larger than the sum of its proper divisors (17372779).

712282217 is a wasteful number, since it uses less digits than its factorization.

712282217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17372778.

The product of its digits is 6272, while the sum is 32.

The square root of 712282217 is about 26688.6158689431. The cubic root of 712282217 is about 893.0669835854.

The spelling of 712282217 in words is "seven hundred twelve million, two hundred eighty-two thousand, two hundred seventeen".