9870912 has 42 divisors (see below), whose sum is σ = 28294838. Its totient is φ = 3290112.

The previous prime is 9870911. The next prime is 9870943. The reversal of 9870912 is 2190789.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5308416 + 4562496 = 2304^2 + 2136^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (9870911) 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, 7993 + ... + 9144.

Almost surely, 2^9870912 is an apocalyptic number.

It is an amenable number.

9870912 is an abundant number, since it is smaller than the sum of its proper divisors (18423926).

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

9870912 is a wasteful number, since it uses less digits than its factorization.

9870912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17155 (or 17142 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 9870912 is about 3141.8007575274. The cubic root of 9870912 is about 214.5124122767.

The spelling of 9870912 in words is "nine million, eight hundred seventy thousand, nine hundred twelve".