705489 has 8 divisors (see below), whose sum is σ = 990240. Its totient is φ = 445536.

The previous prime is 705461. The next prime is 705491. The reversal of 705489 is 984507.

705489 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 not a de Polignac number, because 705489 - 2¹¹ = 703441 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Curzon number.

705489 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6132 + ... + 6245.

It is an arithmetic number, because the mean of its divisors is an integer number (123780).

2⁷⁰⁵⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

705489 is a deficient number, since it is larger than the sum of its proper divisors (284751).

705489 is a wasteful number, since it uses less digits than its factorization.

705489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12399.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 705489 is about 839.9339259728. The cubic root of 705489 is about 89.0218773807.

The spelling of 705489 in words is "seven hundred five thousand, four hundred eighty-nine".