97666090 has 8 divisors (see below), whose sum is σ = 175798980. Its totient is φ = 39066432.

The previous prime is 97666081. The next prime is 97666103. The reversal of 97666090 is 9066679.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 94536729 + 3129361 = 9723^2 + 1769^2 .

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

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 in 3 ways as a sum of consecutive naturals, for example, 4883295 + ... + 4883314.

Almost surely, 2^97666090 is an apocalyptic number.

97666090 is a deficient number, since it is larger than the sum of its proper divisors (78132890).

97666090 is a wasteful number, since it uses less digits than its factorization.

97666090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9766616.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 97666090 is about 9882.6155444801. The cubic root of 97666090 is about 460.5194038484.

The spelling of 97666090 in words is "ninety-seven million, six hundred sixty-six thousand, ninety".