704870656 has 72 divisors (see below), whose sum is σ = 1642394880. Its totient is φ = 295624704.

The previous prime is 704870641. The next prime is 704870657. The reversal of 704870656 is 656078407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (704870657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80040 + ... + 88408.

It is an arithmetic number, because the mean of its divisors is an integer number (22811040).

Almost surely, 2^704870656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 704870656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (821197440).

704870656 is an abundant number, since it is smaller than the sum of its proper divisors (937524224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

704870656 is an equidigital number, since it uses as much as digits as its factorization.

704870656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8439 (or 8425 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 704870656 is about 26549.4002945453. The cubic root of 704870656 is about 889.9586127284.

The spelling of 704870656 in words is "seven hundred four million, eight hundred seventy thousand, six hundred fifty-six".