712216243 has 2 divisors, whose sum is σ = 712216244. Its totient is φ = 712216242.

The previous prime is 712216237. The next prime is 712216291. The reversal of 712216243 is 342612217.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-712216243 is a prime.

It is not a weakly prime, because it can be changed into another prime (712216223) 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 as a sum of consecutive naturals, namely, 356108121 + 356108122.

It is an arithmetic number, because the mean of its divisors is an integer number (356108122).

Almost surely, 2^712216243 is an apocalyptic number.

712216243 is a deficient number, since it is larger than the sum of its proper divisors (1).

712216243 is an equidigital number, since it uses as much as digits as its factorization.

712216243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 28.

The square root of 712216243 is about 26687.3798451628. The cubic root of 712216243 is about 893.0394097675.

The spelling of 712216243 in words is "seven hundred twelve million, two hundred sixteen thousand, two hundred forty-three".