9872836 has 6 divisors (see below), whose sum is σ = 17277470. Its totient is φ = 4936416.

The previous prime is 9872827. The next prime is 9872839. The reversal of 9872836 is 6382789.

It can be written as a sum of positive squares in only one way, i.e., 8156736 + 1716100 = 2856^2 + 1310^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9872792 and 9872801.

It is not an unprimeable number, because it can be changed into a prime (9872839) 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 as a sum of consecutive naturals, namely, 1234101 + ... + 1234108.

Almost surely, 2^9872836 is an apocalyptic number.

It is an amenable number.

9872836 is a deficient number, since it is larger than the sum of its proper divisors (7404634).

9872836 is a wasteful number, since it uses less digits than its factorization.

9872836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468213 (or 2468211 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 9872836 is about 3142.1069364361. The cubic root of 9872836 is about 214.5263486812.

The spelling of 9872836 in words is "nine million, eight hundred seventy-two thousand, eight hundred thirty-six".