97688128 has 14 divisors (see below), whose sum is σ = 193850006. Its totient is φ = 48844032.

The previous prime is 97688093. The next prime is 97688159. The reversal of 97688128 is 82188679.

It can be written as a sum of positive squares in only one way, i.e., 63489024 + 34199104 = 7968^2 + 5848^2 .

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 as a sum of consecutive naturals, namely, 763125 + ... + 763252.

It is an arithmetic number, because the mean of its divisors is an integer number (13846429).

Almost surely, 2^97688128 is an apocalyptic number.

It is an amenable number.

97688128 is a deficient number, since it is larger than the sum of its proper divisors (96161878).

97688128 is a wasteful number, since it uses less digits than its factorization.

97688128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526389 (or 1526379 counting only the distinct ones).

The product of its digits is 387072, while the sum is 49.

The square root of 97688128 is about 9883.7304698176. The cubic root of 97688128 is about 460.5540394228.

The spelling of 97688128 in words is "ninety-seven million, six hundred eighty-eight thousand, one hundred twenty-eight".