97657706 has 8 divisors (see below), whose sum is σ = 148888164. Its totient is φ = 48028320.

The previous prime is 97657697. The next prime is 97657709. The reversal of 97657706 is 60775679.

It can be written as a sum of positive squares in 2 ways, for example, as 69472225 + 28185481 = 8335^2 + 5309^2 .

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

It is not an unprimeable number, because it can be changed into a prime (97657709) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 400115 + ... + 400358.

Almost surely, 2^97657706 is an apocalyptic number.

97657706 is a deficient number, since it is larger than the sum of its proper divisors (51230458).

97657706 is a wasteful number, since it uses less digits than its factorization.

97657706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800536.

The product of its (nonzero) digits is 555660, while the sum is 47.

The square root of 97657706 is about 9882.1913561720. The cubic root of 97657706 is about 460.5062259373.

It can be divided in two parts, 9765 and 7706, that added together give a palindrome (17471).

The spelling of 97657706 in words is "ninety-seven million, six hundred fifty-seven thousand, seven hundred six".