9870140 has 24 divisors (see below), whose sum is σ = 23688672. Its totient is φ = 3384000.

The previous prime is 9870071. The next prime is 9870143. The reversal of 9870140 is 410789.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9870143) 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, 35111 + ... + 35390.

It is an arithmetic number, because the mean of its divisors is an integer number (987028).

Almost surely, 2^9870140 is an apocalyptic number.

It is an amenable number.

9870140 is an abundant number, since it is smaller than the sum of its proper divisors (13818532).

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

9870140 is a wasteful number, since it uses less digits than its factorization.

9870140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70517 (or 70515 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 9870140 is about 3141.6778956475. The cubic root of 9870140 is about 214.5068198215.

The spelling of 9870140 in words is "nine million, eight hundred seventy thousand, one hundred forty".