705646 has 8 divisors (see below), whose sum is σ = 1062360. Its totient is φ = 351528.

The previous prime is 705643. The next prime is 705689. The reversal of 705646 is 646507.

705646 is nontrivially palindromic in base 5.

705646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705643) 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, 325 + ... + 1231.

It is an arithmetic number, because the mean of its divisors is an integer number (132795).

2⁷⁰⁵⁶⁴⁶ is an apocalyptic number.

705646 is a deficient number, since it is larger than the sum of its proper divisors (356714).

705646 is a wasteful number, since it uses less digits than its factorization.

705646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 705646 is about 840.0273805061. The cubic root of 705646 is about 89.0284805539.

The spelling of 705646 in words is "seven hundred five thousand, six hundred forty-six".