705604 has 6 divisors (see below), whose sum is σ = 1234814. Its totient is φ = 352800.

The previous prime is 705559. The next prime is 705613. The reversal of 705604 is 406507.

It can be written as a sum of positive squares in only one way, i.e., 705600 + 4 = 840^2 + 2^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88197 + ... + 88204.

2⁷⁰⁵⁶⁰⁴ is an apocalyptic number.

It is an amenable number.

705604 is a deficient number, since it is larger than the sum of its proper divisors (529210).

705604 is a wasteful number, since it uses less digits than its factorization.

705604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176405 (or 176403 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 705604 is about 840.0023809490. The cubic root of 705604 is about 89.0267141959.

Adding to 705604 its reverse (406507), we get a palindrome (1112111).

The spelling of 705604 in words is "seven hundred five thousand, six hundred four".