9864156 has 12 divisors (see below), whose sum is σ = 23016392. Its totient is φ = 3288048.

The previous prime is 9864143. The next prime is 9864167. The reversal of 9864156 is 6514689.

9864156 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410995 + ... + 411018.

Almost surely, 2^9864156 is an apocalyptic number.

It is an amenable number.

9864156 is an abundant number, since it is smaller than the sum of its proper divisors (13152236).

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

9864156 is a wasteful number, since it uses less digits than its factorization.

9864156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822020 (or 822018 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 9864156 is about 3140.7253939178. The cubic root of 9864156 is about 214.4634611557.

The spelling of 9864156 in words is "nine million, eight hundred sixty-four thousand, one hundred fifty-six".