9785140 has 12 divisors (see below), whose sum is σ = 20548836. Its totient is φ = 3914048.

The previous prime is 9785137. The next prime is 9785141. The reversal of 9785140 is 415879.

It is a happy number.

9785140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2178576 + 7606564 = 1476^2 + 2758^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9785096 and 9785105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9785141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244609 + ... + 244648.

It is an arithmetic number, because the mean of its divisors is an integer number (1712403).

Almost surely, 2^9785140 is an apocalyptic number.

It is an amenable number.

9785140 is an abundant number, since it is smaller than the sum of its proper divisors (10763696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9785140 is a wasteful number, since it uses less digits than its factorization.

9785140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489266 (or 489264 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 9785140 is about 3128.1208416556. The cubic root of 9785140 is about 213.8892780363.

The spelling of 9785140 in words is "nine million, seven hundred eighty-five thousand, one hundred forty".