706317389 has 4 divisors (see below), whose sum is σ = 708096924. Its totient is φ = 704537856.

The previous prime is 706317371. The next prime is 706317401. The reversal of 706317389 is 983713607.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 448168900 + 258148489 = 21170^2 + 16067^2 .

It is a cyclic number.

It is not a de Polignac number, because 706317389 - 2⁸ = 706317133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706317089) 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 3 ways as a sum of consecutive naturals, for example, 889172 + ... + 889965.

It is an arithmetic number, because the mean of its divisors is an integer number (177024231).

Almost surely, 2^706317389 is an apocalyptic number.

It is an amenable number.

706317389 is a deficient number, since it is larger than the sum of its proper divisors (1779535).

706317389 is a wasteful number, since it uses less digits than its factorization.

706317389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779534.

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

The square root of 706317389 is about 26576.6323863653. The cubic root of 706317389 is about 890.5670707519.

The spelling of 706317389 in words is "seven hundred six million, three hundred seventeen thousand, three hundred eighty-nine".