704407997 has 2 divisors, whose sum is σ = 704407998. Its totient is φ = 704407996.

The previous prime is 704407981. The next prime is 704408041. The reversal of 704407997 is 799704407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 397842916 + 306565081 = 19946^2 + 17509^2 .

It is an emirp because it is prime and its reverse (799704407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 704407997 - 2⁴ = 704407981 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (704407927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352203998 + 352203999.

It is an arithmetic number, because the mean of its divisors is an integer number (352203999).

Almost surely, 2^704407997 is an apocalyptic number.

It is an amenable number.

704407997 is a deficient number, since it is larger than the sum of its proper divisors (1).

704407997 is an equidigital number, since it uses as much as digits as its factorization.

704407997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 704407997 is about 26540.6856919711. The cubic root of 704407997 is about 889.7638547834.

The spelling of 704407997 in words is "seven hundred four million, four hundred seven thousand, nine hundred ninety-seven".