704220289 has 2 divisors, whose sum is σ = 704220290. Its totient is φ = 704220288.

The previous prime is 704220271. The next prime is 704220323. The reversal of 704220289 is 982022407.

It is an a-pointer prime, because the next prime (704220323) can be obtained adding 704220289 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 461390400 + 242829889 = 21480^2 + 15583^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-704220289 is a prime.

It is not a weakly prime, because it can be changed into another prime (704220229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352110144 + 352110145.

It is an arithmetic number, because the mean of its divisors is an integer number (352110145).

Almost surely, 2^704220289 is an apocalyptic number.

It is an amenable number.

704220289 is a deficient number, since it is larger than the sum of its proper divisors (1).

704220289 is an equidigital number, since it uses as much as digits as its factorization.

704220289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 704220289 is about 26537.1492251900. The cubic root of 704220289 is about 889.6848141177.

The spelling of 704220289 in words is "seven hundred four million, two hundred twenty thousand, two hundred eighty-nine".