704032321 has 2 divisors, whose sum is σ = 704032322. Its totient is φ = 704032320.

The previous prime is 704032297. The next prime is 704032363. The reversal of 704032321 is 123230407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 450076225 + 253956096 = 21215^2 + 15936^2 .

It is an emirp because it is prime and its reverse (123230407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 704032321 - 2⁷ = 704032193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 704032292 and 704032301.

It is not a weakly prime, because it can be changed into another prime (704032621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352016160 + 352016161.

It is an arithmetic number, because the mean of its divisors is an integer number (352016161).

Almost surely, 2^704032321 is an apocalyptic number.

It is an amenable number.

704032321 is a deficient number, since it is larger than the sum of its proper divisors (1).

704032321 is an equidigital number, since it uses as much as digits as its factorization.

704032321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 704032321 is about 26533.6073876132. The cubic root of 704032321 is about 889.6056498945.

Adding to 704032321 its reverse (123230407), we get a palindrome (827262728).

The spelling of 704032321 in words is "seven hundred four million, thirty-two thousand, three hundred twenty-one".