9861057 has 12 divisors (see below), whose sum is σ = 14993680. Its totient is φ = 6227928.

The previous prime is 9861053. The next prime is 9861079. The reversal of 9861057 is 7501689.

It is not a de Polignac number, because 9861057 - 2² = 9861053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9861053) 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 11 ways as a sum of consecutive naturals, for example, 28663 + ... + 29004.

Almost surely, 2^9861057 is an apocalyptic number.

It is an amenable number.

9861057 is a deficient number, since it is larger than the sum of its proper divisors (5132623).

9861057 is a wasteful number, since it uses less digits than its factorization.

9861057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57692 (or 57689 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 9861057 is about 3140.2319977989. The cubic root of 9861057 is about 214.4409996334.

The spelling of 9861057 in words is "nine million, eight hundred sixty-one thousand, fifty-seven".