704447 has 2 divisors, whose sum is σ = 704448. Its totient is φ = 704446.

The previous prime is 704441. The next prime is 704449. The reversal of 704447 is 744407.

It is a strong prime.

It is an emirp because it is prime and its reverse (744407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 704447 - 2¹⁴ = 688063 is a prime.

Together with 704449, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (704441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352223 + 352224.

It is an arithmetic number, because the mean of its divisors is an integer number (352224).

2⁷⁰⁴⁴⁴⁷ is an apocalyptic number.

704447 is a deficient number, since it is larger than the sum of its proper divisors (1).

704447 is an equidigital number, since it uses as much as digits as its factorization.

704447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 704447 is about 839.3134098774. The cubic root of 704447 is about 88.9780276525.

The spelling of 704447 in words is "seven hundred four thousand, four hundred forty-seven", and thus it is an iban number.