97665699 has 8 divisors (see below), whose sum is σ = 132164800. Its totient is φ = 64138536.

The previous prime is 97665691. The next prime is 97665713. The reversal of 97665699 is 99656679.

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

It is not a de Polignac number, because 97665699 - 2³ = 97665691 is a prime.

It is a super-2 number, since 2×97665699² = 19077177522317202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97665691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242749 + ... + 243150.

It is an arithmetic number, because the mean of its divisors is an integer number (16520600).

Almost surely, 2^97665699 is an apocalyptic number.

97665699 is a deficient number, since it is larger than the sum of its proper divisors (34499101).

97665699 is a wasteful number, since it uses less digits than its factorization.

97665699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485969.

The product of its digits is 5511240, while the sum is 57.

The square root of 97665699 is about 9882.5957622479. The cubic root of 97665699 is about 460.5187892942.

The spelling of 97665699 in words is "ninety-seven million, six hundred sixty-five thousand, six hundred ninety-nine".