704281 has 2 divisors, whose sum is σ = 704282. Its totient is φ = 704280.

The previous prime is 704279. The next prime is 704287. The reversal of 704281 is 182407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 697225 + 7056 = 835^2 + 84^2 .

It is a cyclic number.

It is not a de Polignac number, because 704281 - 2¹ = 704279 is a prime.

It is a super-2 number, since 2×704281² = 992023453922, which contains 22 as substring.

Together with 704279, it forms a pair of twin primes.

704281 is a lucky number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (704287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352140 + 352141.

It is an arithmetic number, because the mean of its divisors is an integer number (352141).

2⁷⁰⁴²⁸¹ is an apocalyptic number.

It is an amenable number.

704281 is a deficient number, since it is larger than the sum of its proper divisors (1).

704281 is an equidigital number, since it uses as much as digits as its factorization.

704281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 704281 is about 839.2145136972. The cubic root of 704281 is about 88.9710380030.

Adding to 704281 its reverse (182407), we get a palindrome (886688).

The spelling of 704281 in words is "seven hundred four thousand, two hundred eighty-one".