706389 has 8 divisors (see below), whose sum is σ = 964992. Its totient is φ = 459360.

The previous prime is 706373. The next prime is 706403. The reversal of 706389 is 983607.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 706389 - 2⁴ = 706373 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706309) 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 7 ways as a sum of consecutive naturals, for example, 2749 + ... + 2994.

It is an arithmetic number, because the mean of its divisors is an integer number (120624).

2⁷⁰⁶³⁸⁹ is an apocalyptic number.

It is an amenable number.

706389 is a deficient number, since it is larger than the sum of its proper divisors (258603).

706389 is a wasteful number, since it uses less digits than its factorization.

706389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5787.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 706389 is about 840.4695116422. The cubic root of 706389 is about 89.0597166874.

The spelling of 706389 in words is "seven hundred six thousand, three hundred eighty-nine".