704670457 has 4 divisors (see below), whose sum is σ = 717966180. Its totient is φ = 691374736.

The previous prime is 704670443. The next prime is 704670509. The reversal of 704670457 is 754076407.

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 280763536 + 423906921 = 16756^2 + 20589^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-704670457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (704670257) 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, 6647782 + ... + 6647887.

It is an arithmetic number, because the mean of its divisors is an integer number (179491545).

Almost surely, 2^704670457 is an apocalyptic number.

It is an amenable number.

704670457 is a deficient number, since it is larger than the sum of its proper divisors (13295723).

704670457 is a wasteful number, since it uses less digits than its factorization.

704670457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13295722.

The product of its (nonzero) digits is 164640, while the sum is 40.

The square root of 704670457 is about 26545.6297156425. The cubic root of 704670457 is about 889.8743487133.

The spelling of 704670457 in words is "seven hundred four million, six hundred seventy thousand, four hundred fifty-seven".