99697 has 4 divisors (see below), whose sum is σ = 107380. Its totient is φ = 92016.

The previous prime is 99689. The next prime is 99707. The reversal of 99697 is 79699.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58081 + 41616 = 241^2 + 204^2 .

It is a cyclic number.

It is not a de Polignac number, because 99697 - 2³ = 99689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3822 + ... + 3847.

It is an arithmetic number, because the mean of its divisors is an integer number (26845).

2⁹⁹⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

99697 is a deficient number, since it is larger than the sum of its proper divisors (7683).

99697 is a wasteful number, since it uses less digits than its factorization.

99697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7682.

The product of its digits is 30618, while the sum is 40.

The square root of 99697 is about 315.7483174935. The cubic root of 99697 is about 46.3689608602.

The spelling of 99697 in words is "ninety-nine thousand, six hundred ninety-seven".