711500989 has 2 divisors, whose sum is σ = 711500990. Its totient is φ = 711500988.

The previous prime is 711500981. The next prime is 711501029. The reversal of 711500989 is 989005117.

It is a happy number.

711500989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (711501029) can be obtained adding 711500989 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 711128889 + 372100 = 26667^2 + 610^2 .

It is a cyclic number.

It is not a de Polignac number, because 711500989 - 2³ = 711500981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (711500981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355750494 + 355750495.

It is an arithmetic number, because the mean of its divisors is an integer number (355750495).

Almost surely, 2^711500989 is an apocalyptic number.

It is an amenable number.

711500989 is a deficient number, since it is larger than the sum of its proper divisors (1).

711500989 is an equidigital number, since it uses as much as digits as its factorization.

711500989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 40.

The square root of 711500989 is about 26673.9758753734. The cubic root of 711500989 is about 892.7403601645.

The spelling of 711500989 in words is "seven hundred eleven million, five hundred thousand, nine hundred eighty-nine".