705657725 has 12 divisors (see below), whose sum is σ = 905189460. Its totient is φ = 545059200.

The previous prime is 705657721. The next prime is 705657751. The reversal of 705657725 is 527756507.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 26429881 + 679227844 = 5141^2 + 26062^2 .

It is not a de Polignac number, because 705657725 - 2² = 705657721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705657721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 485936 + ... + 487385.

It is an arithmetic number, because the mean of its divisors is an integer number (75432455).

Almost surely, 2^705657725 is an apocalyptic number.

It is an amenable number.

705657725 is a deficient number, since it is larger than the sum of its proper divisors (199531735).

705657725 is a wasteful number, since it uses less digits than its factorization.

705657725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973360 (or 973355 counting only the distinct ones).

The product of its (nonzero) digits is 514500, while the sum is 44.

The square root of 705657725 is about 26564.2188855611. The cubic root of 705657725 is about 890.2897364965.

The spelling of 705657725 in words is "seven hundred five million, six hundred fifty-seven thousand, seven hundred twenty-five".