704291009 has 4 divisors (see below), whose sum is σ = 704587716. Its totient is φ = 703994304.

The previous prime is 704290991. The next prime is 704291017. The reversal of 704291009 is 900192407.

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 109662784 + 594628225 = 10472^2 + 24385^2 .

It is a cyclic number.

It is not a de Polignac number, because 704291009 - 2⁸ = 704290753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (704291089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144764 + ... + 149549.

It is an arithmetic number, because the mean of its divisors is an integer number (176146929).

Almost surely, 2^704291009 is an apocalyptic number.

It is an amenable number.

704291009 is a deficient number, since it is larger than the sum of its proper divisors (296707).

704291009 is a wasteful number, since it uses less digits than its factorization.

704291009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296706.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 704291009 is about 26538.4816634260. The cubic root of 704291009 is about 889.7145947630.

The spelling of 704291009 in words is "seven hundred four million, two hundred ninety-one thousand, nine".