704818 has 4 divisors (see below), whose sum is σ = 1057230. Its totient is φ = 352408.

The previous prime is 704807. The next prime is 704819. The reversal of 704818 is 818407.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 818407 = 631 ⋅1297.

It can be written as a sum of positive squares in only one way, i.e., 573049 + 131769 = 757^2 + 363^2 .

It is not an unprimeable number, because it can be changed into a prime (704819) by changing a digit.

704818 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 as a sum of consecutive naturals, namely, 176203 + ... + 176206.

2⁷⁰⁴⁸¹⁸ is an apocalyptic number.

704818 is a deficient number, since it is larger than the sum of its proper divisors (352412).

704818 is a wasteful number, since it uses less digits than its factorization.

704818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352411.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 704818 is about 839.5343947689. The cubic root of 704818 is about 88.9936451297.

The spelling of 704818 in words is "seven hundred four thousand, eight hundred eighteen".