704830421 has 8 divisors (see below), whose sum is σ = 753986520. Its totient is φ = 656529408.

The previous prime is 704830391. The next prime is 704830433. The reversal of 704830421 is 124038407.

704830421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 166126321 + 538704100 = 12889^2 + 23210^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 704830421 - 2¹⁰ = 704829397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (704830481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212066 + ... + 215363.

It is an arithmetic number, because the mean of its divisors is an integer number (94248315).

Almost surely, 2^704830421 is an apocalyptic number.

It is an amenable number.

704830421 is a deficient number, since it is larger than the sum of its proper divisors (49156099).

704830421 is a wasteful number, since it uses less digits than its factorization.

704830421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427543.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 704830421 is about 26548.6425453355. The cubic root of 704830421 is about 889.9416790467.

Adding to 704830421 its reverse (124038407), we get a palindrome (828868828).

The spelling of 704830421 in words is "seven hundred four million, eight hundred thirty thousand, four hundred twenty-one".