706764720 has 80 divisors (see below), whose sum is σ = 2211153120. Its totient is φ = 186734592.

The previous prime is 706764719. The next prime is 706764733. The reversal of 706764720 is 27467607.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 12652 + ... + 39668.

It is an arithmetic number, because the mean of its divisors is an integer number (27639414).

Almost surely, 2^706764720 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 706764720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1105576560).

706764720 is an abundant number, since it is smaller than the sum of its proper divisors (1504388400).

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

706764720 is a wasteful number, since it uses less digits than its factorization.

706764720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27142 (or 27136 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 39.

The square root of 706764720 is about 26585.0469249163. The cubic root of 706764720 is about 890.7550382732.

The spelling of 706764720 in words is "seven hundred six million, seven hundred sixty-four thousand, seven hundred twenty".