704192561 has 4 divisors (see below), whose sum is σ = 704245824. Its totient is φ = 704139300.

The previous prime is 704192557. The next prime is 704192591. The reversal of 704192561 is 165291407.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 704192561 - 2² = 704192557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (704192551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9956 + ... + 38826.

It is an arithmetic number, because the mean of its divisors is an integer number (176061456).

Almost surely, 2^704192561 is an apocalyptic number.

It is an amenable number.

704192561 is a deficient number, since it is larger than the sum of its proper divisors (53263).

704192561 is a wasteful number, since it uses less digits than its factorization.

704192561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53262.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 704192561 is about 26536.6267826188. The cubic root of 704192561 is about 889.6731371350.

The spelling of 704192561 in words is "seven hundred four million, one hundred ninety-two thousand, five hundred sixty-one".