705667712 has 16 divisors (see below), whose sum is σ = 1405822650. Its totient is φ = 352833792.

The previous prime is 705667691. The next prime is 705667723. The reversal of 705667712 is 217766507.

It can be written as a sum of positive squares in only one way, i.e., 582546496 + 123121216 = 24136^2 + 11096^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 705667712.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2756387 + ... + 2756642.

Almost surely, 2^705667712 is an apocalyptic number.

It is an amenable number.

705667712 is a deficient number, since it is larger than the sum of its proper divisors (700154938).

705667712 is an equidigital number, since it uses as much as digits as its factorization.

705667712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5513043 (or 5513031 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 41.

The square root of 705667712 is about 26564.4068633199. The cubic root of 705667712 is about 890.2939364938.

The spelling of 705667712 in words is "seven hundred five million, six hundred sixty-seven thousand, seven hundred twelve".