706716657 has 14 divisors (see below), whose sum is σ = 1059591362. Its totient is φ = 471143952.

The previous prime is 706716649. The next prime is 706716667. The reversal of 706716657 is 756617607.

It can be written as a sum of positive squares in only one way, i.e., 688747536 + 17969121 = 26244^2 + 4239^2 .

It is not a de Polignac number, because 706716657 - 2³ = 706716649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (706716667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 483988 + ... + 485445.

Almost surely, 2^706716657 is an apocalyptic number.

It is an amenable number.

706716657 is a deficient number, since it is larger than the sum of its proper divisors (352874705).

706716657 is an frugal number, since it uses more digits than its factorization.

706716657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969451 (or 969436 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The square root of 706716657 is about 26584.1429615476. The cubic root of 706716657 is about 890.7348461080.

The spelling of 706716657 in words is "seven hundred six million, seven hundred sixteen thousand, six hundred fifty-seven".