97708663 has 4 divisors (see below), whose sum is σ = 105224728. Its totient is φ = 90192600.

The previous prime is 97708649. The next prime is 97708717. The reversal of 97708663 is 36680779.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97708663 - 2¹⁷ = 97577591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97708613) 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 3 ways as a sum of consecutive naturals, for example, 3758013 + ... + 3758038.

It is an arithmetic number, because the mean of its divisors is an integer number (26306182).

Almost surely, 2^97708663 is an apocalyptic number.

97708663 is a deficient number, since it is larger than the sum of its proper divisors (7516065).

97708663 is a wasteful number, since it uses less digits than its factorization.

97708663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7516064.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 97708663 is about 9884.7692436394. The cubic root of 97708663 is about 460.5863081497.

The spelling of 97708663 in words is "ninety-seven million, seven hundred eight thousand, six hundred sixty-three".