711449 has 4 divisors (see below), whose sum is σ = 714036. Its totient is φ = 708864.

The previous prime is 711437. The next prime is 711463. The reversal of 711449 is 944117.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 944117 = 131 ⋅7207.

It can be written as a sum of positive squares in 2 ways, for example, as 265225 + 446224 = 515^2 + 668^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-711449 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (711409) 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 in 3 ways as a sum of consecutive naturals, for example, 824 + ... + 1449.

It is an arithmetic number, because the mean of its divisors is an integer number (178509).

2⁷¹¹⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

711449 is a deficient number, since it is larger than the sum of its proper divisors (2587).

711449 is a wasteful number, since it uses less digits than its factorization.

711449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586.

The product of its digits is 1008, while the sum is 26.

The square root of 711449 is about 843.4743623845. The cubic root of 711449 is about 89.2718615613.

The spelling of 711449 in words is "seven hundred eleven thousand, four hundred forty-nine".