9857646 has 16 divisors (see below), whose sum is σ = 21906000. Its totient is φ = 3285864.

The previous prime is 9857641. The next prime is 9857647. The reversal of 9857646 is 6467589.

It is a super-2 number, since 2×9857646² = 194346369322632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9857641) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 91221 + ... + 91328.

It is an arithmetic number, because the mean of its divisors is an integer number (1369125).

Almost surely, 2^9857646 is an apocalyptic number.

9857646 is an abundant number, since it is smaller than the sum of its proper divisors (12048354).

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

9857646 is a wasteful number, since it uses less digits than its factorization.

9857646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182560 (or 182554 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 9857646 is about 3139.6888380857. The cubic root of 9857646 is about 214.4162712970.

The spelling of 9857646 in words is "nine million, eight hundred fifty-seven thousand, six hundred forty-six".