706581216 has 72 divisors (see below), whose sum is σ = 2192017464. Its totient is φ = 214114560.

The previous prime is 706581209. The next prime is 706581223. The reversal of 706581216 is 612185607.

706581216 is a `hidden beast` number, since 70 + 6 + 581 + 2 + 1 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (706581209) and next prime (706581223).

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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, 108351 + ... + 114686.

It is an arithmetic number, because the mean of its divisors is an integer number (30444687).

Almost surely, 2^706581216 is an apocalyptic number.

It is an amenable number.

706581216 is an abundant number, since it is smaller than the sum of its proper divisors (1485436248).

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

706581216 is a wasteful number, since it uses less digits than its factorization.

706581216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223064 (or 223053 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 706581216 is about 26581.5954374451. The cubic root of 706581216 is about 890.6779398854.

The spelling of 706581216 in words is "seven hundred six million, five hundred eighty-one thousand, two hundred sixteen".