9917266 has 4 divisors (see below), whose sum is σ = 14875902. Its totient is φ = 4958632.

The previous prime is 9917263. The next prime is 9917267. The reversal of 9917266 is 6627199.

9917266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6627199 = 41 ⋅161639.

It can be written as a sum of positive squares in only one way, i.e., 8151025 + 1766241 = 2855^2 + 1329^2 .

It is a super-4 number, since 4×9917266⁴ (a number of 29 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (9917263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2479315 + ... + 2479318.

Almost surely, 2^9917266 is an apocalyptic number.

9917266 is a deficient number, since it is larger than the sum of its proper divisors (4958636).

9917266 is a wasteful number, since it uses less digits than its factorization.

9917266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4958635.

The product of its digits is 40824, while the sum is 40.

The square root of 9917266 is about 3149.1690967619. The cubic root of 9917266 is about 214.8476728844.

The spelling of 9917266 in words is "nine million, nine hundred seventeen thousand, two hundred sixty-six".