9917099 has 4 divisors (see below), whose sum is σ = 9923736. Its totient is φ = 9910464.

The previous prime is 9917087. The next prime is 9917119. The reversal of 9917099 is 9907199.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9907199 = 41 ⋅241639.

It is a cyclic number.

It is not a de Polignac number, because 9917099 - 2⁸ = 9916843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9917009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92 + ... + 4454.

It is an arithmetic number, because the mean of its divisors is an integer number (2480934).

Almost surely, 2^9917099 is an apocalyptic number.

9917099 is a deficient number, since it is larger than the sum of its proper divisors (6637).

9917099 is a wasteful number, since it uses less digits than its factorization.

9917099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6636.

The product of its (nonzero) digits is 45927, while the sum is 44.

The square root of 9917099 is about 3149.1425817197. The cubic root of 9917099 is about 214.8464669148.

The spelling of 9917099 in words is "nine million, nine hundred seventeen thousand, ninety-nine".