9916493 has 4 divisors (see below), whose sum is σ = 10007580. Its totient is φ = 9825408.

The previous prime is 9916451. The next prime is 9916507. The reversal of 9916493 is 3946199.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3946199 = 1009 ⋅3911.

It can be written as a sum of positive squares in 2 ways, for example, as 3378244 + 6538249 = 1838^2 + 2557^2 .

It is a cyclic number.

It is not a de Polignac number, because 9916493 - 2⁸ = 9916237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9916493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9916433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45380 + ... + 45597.

It is an arithmetic number, because the mean of its divisors is an integer number (2501895).

Almost surely, 2^9916493 is an apocalyptic number.

It is an amenable number.

9916493 is a deficient number, since it is larger than the sum of its proper divisors (91087).

9916493 is a wasteful number, since it uses less digits than its factorization.

9916493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91086.

The product of its digits is 52488, while the sum is 41.

The square root of 9916493 is about 3149.0463635837. The cubic root of 9916493 is about 214.8420906481.

The spelling of 9916493 in words is "nine million, nine hundred sixteen thousand, four hundred ninety-three".