9861238 has 16 divisors (see below), whose sum is σ = 15246000. Its totient is φ = 4780800.

The previous prime is 9861223. The next prime is 9861239. The reversal of 9861238 is 8321689.

It is a junction number, because it is equal to n+sod(n) for n = 9861197 and 9861206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9861239) 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, 19513 + ... + 20011.

It is an arithmetic number, because the mean of its divisors is an integer number (952875).

Almost surely, 2^9861238 is an apocalyptic number.

9861238 is a deficient number, since it is larger than the sum of its proper divisors (5384762).

9861238 is a wasteful number, since it uses less digits than its factorization.

9861238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783.

The product of its digits is 20736, while the sum is 37.

The square root of 9861238 is about 3140.2608171934. The cubic root of 9861238 is about 214.4423116491.

The spelling of 9861238 in words is "nine million, eight hundred sixty-one thousand, two hundred thirty-eight".