704680813 has 4 divisors (see below), whose sum is σ = 705221280. Its totient is φ = 704140348.

The previous prime is 704680793. The next prime is 704680829. The reversal of 704680813 is 318086407.

It is a happy number.

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 an emirpimes, since its reverse is a distinct semiprime: 318086407 = 2833 ⋅112279.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-704680813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (704680843) 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, 268273 + ... + 270886.

It is an arithmetic number, because the mean of its divisors is an integer number (176305320).

Almost surely, 2^704680813 is an apocalyptic number.

It is an amenable number.

704680813 is a deficient number, since it is larger than the sum of its proper divisors (540467).

704680813 is a wasteful number, since it uses less digits than its factorization.

704680813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540466.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 704680813 is about 26545.8247752825. The cubic root of 704680813 is about 889.8787079583.

The spelling of 704680813 in words is "seven hundred four million, six hundred eighty thousand, eight hundred thirteen".