704385 has 24 divisors (see below), whose sum is σ = 1332864. Its totient is φ = 341280.

The previous prime is 704357. The next prime is 704393. The reversal of 704385 is 583407.

It is not a de Polignac number, because 704385 - 2⁶ = 704321 is a prime.

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217 + ... + 1206.

It is an arithmetic number, because the mean of its divisors is an integer number (55536).

2⁷⁰⁴³⁸⁵ is an apocalyptic number.

It is an amenable number.

704385 is a deficient number, since it is larger than the sum of its proper divisors (628479).

704385 is a wasteful number, since it uses less digits than its factorization.

704385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445 (or 1442 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 704385 is about 839.2764741133. The cubic root of 704385 is about 88.9754171890.

It can be divided in two parts, 704 and 385, that added together give a square (1089 = 33²).

The spelling of 704385 in words is "seven hundred four thousand, three hundred eighty-five".