704458 has 4 divisors (see below), whose sum is σ = 1056690. Its totient is φ = 352228.

The previous prime is 704453. The next prime is 704461. The reversal of 704458 is 854407.

704458 is nontrivially palindromic in base 15.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 597529 + 106929 = 773^2 + 327^2 .

It is a super-2 number, since 2×704458² = 992522147528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (704453) by changing a digit.

704458 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176113 + ... + 176116.

2⁷⁰⁴⁴⁵⁸ is an apocalyptic number.

704458 is a deficient number, since it is larger than the sum of its proper divisors (352232).

704458 is a wasteful number, since it uses less digits than its factorization.

704458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352231.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 704458 is about 839.3199628270. The cubic root of 704458 is about 88.9784907833.

The spelling of 704458 in words is "seven hundred four thousand, four hundred fifty-eight".