704198249 has 4 divisors (see below), whose sum is σ = 704639700. Its totient is φ = 703756800.

The previous prime is 704198219. The next prime is 704198267. The reversal of 704198249 is 942891407.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 480486400 + 223711849 = 21920^2 + 14957^2 .

It is a cyclic number.

It is not a de Polignac number, because 704198249 - 2¹⁶ = 704132713 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (704198219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218324 + ... + 221525.

It is an arithmetic number, because the mean of its divisors is an integer number (176159925).

Almost surely, 2^704198249 is an apocalyptic number.

It is an amenable number.

704198249 is a deficient number, since it is larger than the sum of its proper divisors (441451).

704198249 is a wasteful number, since it uses less digits than its factorization.

704198249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441450.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 704198249 is about 26536.7339550292. The cubic root of 704198249 is about 889.6755325249.

The spelling of 704198249 in words is "seven hundred four million, one hundred ninety-eight thousand, two hundred forty-nine".