706870656 has 96 divisors (see below), whose sum is σ = 2041668720. Its totient is φ = 234746880.

The previous prime is 706870651. The next prime is 706870657. The reversal of 706870656 is 656078607.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×706870656² = 999332248627740672, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706870651) 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 11 ways as a sum of consecutive naturals, for example, 357286 + ... + 359258.

Almost surely, 2^706870656 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 706870656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1020834360).

706870656 is an abundant number, since it is smaller than the sum of its proper divisors (1334798064).

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

706870656 is a wasteful number, since it uses less digits than its factorization.

706870656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304 (or 2289 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 706870656 is about 26587.0392484759. The cubic root of 706870656 is about 890.7995407357.

The spelling of 706870656 in words is "seven hundred six million, eight hundred seventy thousand, six hundred fifty-six".