706828385 has 8 divisors (see below), whose sum is σ = 851495976. Its totient is φ = 563261440.

The previous prime is 706828361. The next prime is 706828393. The reversal of 706828385 is 583828607.

It can be written as a sum of positive squares in 4 ways, for example, as 410953984 + 295874401 = 20272^2 + 17201^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 706828385 - 2⁶ = 706828321 is a prime.

It is a Duffinian number.

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 in 7 ways as a sum of consecutive naturals, for example, 273746 + ... + 276315.

It is an arithmetic number, because the mean of its divisors is an integer number (106436997).

Almost surely, 2^706828385 is an apocalyptic number.

It is an amenable number.

706828385 is a deficient number, since it is larger than the sum of its proper divisors (144667591).

706828385 is a wasteful number, since it uses less digits than its factorization.

706828385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550323.

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 706828385 is about 26586.2442815829. The cubic root of 706828385 is about 890.7817837210.

It can be divided in two parts, 7068 and 28385, that added together give a palindrome (35453).

The spelling of 706828385 in words is "seven hundred six million, eight hundred twenty-eight thousand, three hundred eighty-five".