704432609 has 4 divisors (see below), whose sum is σ = 704705220. Its totient is φ = 704160000.

The previous prime is 704432567. The next prime is 704432627. The reversal of 704432609 is 906234407.

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 345216400 + 359216209 = 18580^2 + 18953^2 .

It is a cyclic number.

It is not a de Polignac number, because 704432609 - 2¹² = 704428513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (704432629) 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, 132392 + ... + 137609.

It is an arithmetic number, because the mean of its divisors is an integer number (176176305).

Almost surely, 2^704432609 is an apocalyptic number.

It is an amenable number.

704432609 is a deficient number, since it is larger than the sum of its proper divisors (272611).

704432609 is a wasteful number, since it uses less digits than its factorization.

704432609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272610.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 704432609 is about 26541.1493534097. The cubic root of 704432609 is about 889.7742174392.

The spelling of 704432609 in words is "seven hundred four million, four hundred thirty-two thousand, six hundred nine".