9857950 has 12 divisors (see below), whose sum is σ = 18335880. Its totient is φ = 3943160.

The previous prime is 9857933. The next prime is 9857957. The reversal of 9857950 is 597589.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9857897 and 9857906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9857957) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 98530 + ... + 98629.

It is an arithmetic number, because the mean of its divisors is an integer number (1527990).

Almost surely, 2^9857950 is an apocalyptic number.

9857950 is a deficient number, since it is larger than the sum of its proper divisors (8477930).

9857950 is a wasteful number, since it uses less digits than its factorization.

9857950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197171 (or 197166 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 43.

The square root of 9857950 is about 3139.7372501533. The cubic root of 9857950 is about 214.4184754026.

The spelling of 9857950 in words is "nine million, eight hundred fifty-seven thousand, nine hundred fifty".