706568489 has 6 divisors (see below), whose sum is σ = 776641530. Its totient is φ = 642334880.

The previous prime is 706568477. The next prime is 706568491. The reversal of 706568489 is 984865607.

It can be written as a sum of positive squares in only one way, i.e., 547934464 + 158634025 = 23408^2 + 12595^2 .

It is not a de Polignac number, because 706568489 - 2²⁴ = 689791273 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 706568489.

It is not an unprimeable number, because it can be changed into a prime (706568449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2919584 + ... + 2919825.

It is an arithmetic number, because the mean of its divisors is an integer number (129440255).

Almost surely, 2^706568489 is an apocalyptic number.

It is an amenable number.

706568489 is a deficient number, since it is larger than the sum of its proper divisors (70073041).

706568489 is a wasteful number, since it uses less digits than its factorization.

706568489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5839431 (or 5839420 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The square root of 706568489 is about 26581.3560414062. The cubic root of 706568489 is about 890.6725921981.

The spelling of 706568489 in words is "seven hundred six million, five hundred sixty-eight thousand, four hundred eighty-nine".