711947 has 2 divisors, whose sum is σ = 711948. Its totient is φ = 711946.

The previous prime is 711937. The next prime is 711959. The reversal of 711947 is 749117.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 711947 - 2⁸ = 711691 is a prime.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 711947.

It is not a weakly prime, because it can be changed into another prime (711937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355973 + 355974.

It is an arithmetic number, because the mean of its divisors is an integer number (355974).

2⁷¹¹⁹⁴⁷ is an apocalyptic number.

711947 is a deficient number, since it is larger than the sum of its proper divisors (1).

711947 is an equidigital number, since it uses as much as digits as its factorization.

711947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1764, while the sum is 29.

The square root of 711947 is about 843.7695182928. The cubic root of 711947 is about 89.2926862061.

The spelling of 711947 in words is "seven hundred eleven thousand, nine hundred forty-seven".