9900826 has 16 divisors (see below), whose sum is σ = 16083144. Its totient is φ = 4544064.

The previous prime is 9900799. The next prime is 9900827. The reversal of 9900826 is 6280099.

It can be written as a sum of positive squares in 4 ways, for example, as 9603801 + 297025 = 3099^2 + 545^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9900791 and 9900800.

It is not an unprimeable number, because it can be changed into a prime (9900827) 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 7 ways as a sum of consecutive naturals, for example, 4156 + ... + 6088.

Almost surely, 2^9900826 is an apocalyptic number.

9900826 is a deficient number, since it is larger than the sum of its proper divisors (6182318).

9900826 is a wasteful number, since it uses less digits than its factorization.

9900826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 9900826 is about 3146.5578017891. The cubic root of 9900826 is about 214.7288884910.

The spelling of 9900826 in words is "nine million, nine hundred thousand, eight hundred twenty-six".