9851641 has 8 divisors (see below), whose sum is σ = 10056384. Its totient is φ = 9649200.

The previous prime is 9851627. The next prime is 9851651. The reversal of 9851641 is 1461589.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9851641 - 2⁹ = 9851129 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9851597 and 9851606.

It is not an unprimeable number, because it can be changed into a prime (9851651) 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, 9930 + ... + 10876.

It is an arithmetic number, because the mean of its divisors is an integer number (1257048).

Almost surely, 2^9851641 is an apocalyptic number.

It is an amenable number.

9851641 is a deficient number, since it is larger than the sum of its proper divisors (204743).

9851641 is a wasteful number, since it uses less digits than its factorization.

9851641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151.

The product of its digits is 8640, while the sum is 34.

The square root of 9851641 is about 3138.7323874456. The cubic root of 9851641 is about 214.3727236709.

The spelling of 9851641 in words is "nine million, eight hundred fifty-one thousand, six hundred forty-one".