9804156 has 12 divisors (see below), whose sum is σ = 22876392. Its totient is φ = 3268048.

The previous prime is 9804143. The next prime is 9804161. The reversal of 9804156 is 6514089.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×9804156² = 192242949744672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 408495 + ... + 408518.

It is an arithmetic number, because the mean of its divisors is an integer number (1906366).

Almost surely, 2^9804156 is an apocalyptic number.

It is an amenable number.

9804156 is an abundant number, since it is smaller than the sum of its proper divisors (13072236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9804156 is a wasteful number, since it uses less digits than its factorization.

9804156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817020 (or 817018 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 9804156 is about 3131.1588908901. The cubic root of 9804156 is about 214.0277426403.

The spelling of 9804156 in words is "nine million, eight hundred four thousand, one hundred fifty-six".