9875657 has 12 divisors (see below), whose sum is σ = 11495988. Its totient is φ = 8448000.

The previous prime is 9875651. The next prime is 9875669. The reversal of 9875657 is 7565789.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6739216 + 3136441 = 2596^2 + 1771^2 .

It is not a de Polignac number, because 9875657 - 2¹⁰ = 9874633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9875651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 344 + ... + 4457.

It is an arithmetic number, because the mean of its divisors is an integer number (957999).

Almost surely, 2^9875657 is an apocalyptic number.

It is an amenable number.

9875657 is a deficient number, since it is larger than the sum of its proper divisors (1620331).

9875657 is a wasteful number, since it uses less digits than its factorization.

9875657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4840 (or 4829 counting only the distinct ones).

The product of its digits is 529200, while the sum is 47.

The square root of 9875657 is about 3142.5558069826. Note that the first 3 decimals coincide. The cubic root of 9875657 is about 214.5467791904.

The spelling of 9875657 in words is "nine million, eight hundred seventy-five thousand, six hundred fifty-seven".