9872130 has 32 divisors (see below), whose sum is σ = 23918400. Its totient is φ = 2607552.

The previous prime is 9872123. The next prime is 9872131. The reversal of 9872130 is 312789.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9872131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1761 + ... + 4779.

It is an arithmetic number, because the mean of its divisors is an integer number (747450).

Almost surely, 2^9872130 is an apocalyptic number.

9872130 is an abundant number, since it is smaller than the sum of its proper divisors (14046270).

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

9872130 is a wasteful number, since it uses less digits than its factorization.

9872130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 9872130 is about 3141.9945894288. The cubic root of 9872130 is about 214.5212350134.

The spelling of 9872130 in words is "nine million, eight hundred seventy-two thousand, one hundred thirty".