711673649 has 2 divisors, whose sum is σ = 711673650. Its totient is φ = 711673648.

The previous prime is 711673631. The next prime is 711673679. The reversal of 711673649 is 946376117.

711673649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 614296225 + 97377424 = 24785^2 + 9868^2 .

It is an emirp because it is prime and its reverse (946376117) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 711673649 - 2⁸ = 711673393 is a prime.

It is not a weakly prime, because it can be changed into another prime (711673679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355836824 + 355836825.

It is an arithmetic number, because the mean of its divisors is an integer number (355836825).

Almost surely, 2^711673649 is an apocalyptic number.

It is an amenable number.

711673649 is a deficient number, since it is larger than the sum of its proper divisors (1).

711673649 is an equidigital number, since it uses as much as digits as its factorization.

711673649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 44.

The square root of 711673649 is about 26677.2121669413. The cubic root of 711673649 is about 892.8125681147.

The spelling of 711673649 in words is "seven hundred eleven million, six hundred seventy-three thousand, six hundred forty-nine".