704905 has 8 divisors (see below), whose sum is σ = 895752. Its totient is φ = 530688.

The previous prime is 704897. The next prime is 704929. The reversal of 704905 is 509407.

It can be written as a sum of positive squares in 4 ways, for example, as 69696 + 635209 = 264^2 + 797^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 704905 - 2³ = 704897 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 704905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4062 + ... + 4231.

It is an arithmetic number, because the mean of its divisors is an integer number (111969).

2⁷⁰⁴⁹⁰⁵ is an apocalyptic number.

It is an amenable number.

704905 is a deficient number, since it is larger than the sum of its proper divisors (190847).

704905 is a wasteful number, since it uses less digits than its factorization.

704905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8315.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 704905 is about 839.5862076047. The cubic root of 704905 is about 88.9973066559.

The spelling of 704905 in words is "seven hundred four thousand, nine hundred five".