704545 has 4 divisors (see below), whose sum is σ = 845460. Its totient is φ = 563632.

The previous prime is 704527. The next prime is 704549. The reversal of 704545 is 545407.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545407 = 499 ⋅1093.

It can be written as a sum of positive squares in 2 ways, for example, as 345744 + 358801 = 588^2 + 599^2 .

It is a cyclic number.

It is not a de Polignac number, because 704545 - 2¹¹ = 702497 is a prime.

704545 is a modest number, since divided by 4545 gives 70 as remainder.

It is not an unprimeable number, because it can be changed into a prime (704549) 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, 70450 + ... + 70459.

It is an arithmetic number, because the mean of its divisors is an integer number (211365).

2⁷⁰⁴⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

704545 is a deficient number, since it is larger than the sum of its proper divisors (140915).

704545 is a wasteful number, since it uses less digits than its factorization.

704545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140914.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 704545 is about 839.3717888993. The cubic root of 704545 is about 88.9821535567.

The spelling of 704545 in words is "seven hundred four thousand, five hundred forty-five".