705704 has 16 divisors (see below), whose sum is σ = 1401300. Its totient is φ = 332032.

The previous prime is 705689. The next prime is 705713. The reversal of 705704 is 407507.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 643204 + 62500 = 802^2 + 250^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 705704.

It is a congruent number.

It is an unprimeable number.

705704 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2459 + ... + 2730.

2⁷⁰⁵⁷⁰⁴ is an apocalyptic number.

It is an amenable number.

705704 is a deficient number, since it is larger than the sum of its proper divisors (695596).

705704 is a wasteful number, since it uses less digits than its factorization.

705704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5212 (or 5208 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 23.

The square root of 705704 is about 840.0619024810. The cubic root of 705704 is about 89.0309196949.

The spelling of 705704 in words is "seven hundred five thousand, seven hundred four".