97666 has 8 divisors (see below), whose sum is σ = 149760. Its totient is φ = 47748.

The previous prime is 97651. The next prime is 97673. The reversal of 97666 is 66679.

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

It is an Ulam number.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426 + ... + 613.

It is an arithmetic number, because the mean of its divisors is an integer number (18720).

2⁹⁷⁶⁶⁶ is an apocalyptic number.

97666 is a deficient number, since it is larger than the sum of its proper divisors (52094).

97666 is a wasteful number, since it uses less digits than its factorization.

97666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088.

The product of its digits is 13608, while the sum is 34.

The square root of 97666 is about 312.5155996106. The cubic root of 97666 is about 46.0519262391.

The spelling of 97666 in words is "ninety-seven thousand, six hundred sixty-six".