99166717 has 4 divisors (see below), whose sum is σ = 106794940. Its totient is φ = 91538496.

The previous prime is 99166699. The next prime is 99166721. The reversal of 99166717 is 71766199.

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 65189476 + 33977241 = 8074^2 + 5829^2 .

It is a cyclic number.

It is not a de Polignac number, because 99166717 - 2¹¹ = 99164669 is a prime.

It is a super-3 number, since 3×99166717³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99160717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3814092 + ... + 3814117.

It is an arithmetic number, because the mean of its divisors is an integer number (26698735).

Almost surely, 2^99166717 is an apocalyptic number.

It is an amenable number.

99166717 is a deficient number, since it is larger than the sum of its proper divisors (7628223).

99166717 is a wasteful number, since it uses less digits than its factorization.

99166717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7628222.

The product of its digits is 142884, while the sum is 46.

The square root of 99166717 is about 9958.2486914116. The cubic root of 99166717 is about 462.8660332945.

The spelling of 99166717 in words is "ninety-nine million, one hundred sixty-six thousand, seven hundred seventeen".