97666575 has 12 divisors (see below), whose sum is σ = 161475528. Its totient is φ = 52088800.

The previous prime is 97666571. The next prime is 97666601. The reversal of 97666575 is 57566679.

It is not a de Polignac number, because 97666575 - 2² = 97666571 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97666571) 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 11 ways as a sum of consecutive naturals, for example, 651036 + ... + 651185.

It is an arithmetic number, because the mean of its divisors is an integer number (13456294).

Almost surely, 2^97666575 is an apocalyptic number.

97666575 is a deficient number, since it is larger than the sum of its proper divisors (63808953).

97666575 is a wasteful number, since it uses less digits than its factorization.

97666575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302234 (or 1302229 counting only the distinct ones).

The product of its digits is 2381400, while the sum is 51.

The square root of 97666575 is about 9882.6400824881. The cubic root of 97666575 is about 460.5201661449.

The spelling of 97666575 in words is "ninety-seven million, six hundred sixty-six thousand, five hundred seventy-five".