706789 has 4 divisors (see below), whose sum is σ = 708556. Its totient is φ = 705024.

The previous prime is 706787. The next prime is 706793. The reversal of 706789 is 987607.

706789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 209764 + 497025 = 458^2 + 705^2 .

It is a cyclic number.

It is not a de Polignac number, because 706789 - 2¹ = 706787 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 (706787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37 + ... + 1189.

It is an arithmetic number, because the mean of its divisors is an integer number (177139).

2⁷⁰⁶⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

706789 is a deficient number, since it is larger than the sum of its proper divisors (1767).

706789 is a wasteful number, since it uses less digits than its factorization.

706789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 706789 is about 840.7074401955. The cubic root of 706789 is about 89.0765238407.

It can be divided in two parts, 70 and 6789, that added together give a cube (6859 = 19³).

The spelling of 706789 in words is "seven hundred six thousand, seven hundred eighty-nine".