704518 has 8 divisors (see below), whose sum is σ = 1065240. Its totient is φ = 349440.

The previous prime is 704507. The next prime is 704521. The reversal of 704518 is 815407.

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

It is a super-2 number, since 2×704518² = 992691224648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 704492 and 704501.

It is a congruent number.

It is an unprimeable number.

704518 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, 1083 + ... + 1606.

It is an arithmetic number, because the mean of its divisors is an integer number (133155).

2⁷⁰⁴⁵¹⁸ is an apocalyptic number.

704518 is a deficient number, since it is larger than the sum of its proper divisors (360722).

704518 is a wasteful number, since it uses less digits than its factorization.

704518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2822.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 704518 is about 839.3557052883. The cubic root of 704518 is about 88.9810168662.

Subtracting 704518 from its reverse (815407), we obtain a square (110889 = 333²).

The spelling of 704518 in words is "seven hundred four thousand, five hundred eighteen".