9871012 has 12 divisors (see below), whose sum is σ = 17308620. Its totient is φ = 4925696.

The previous prime is 9871007. The next prime is 9871027. The reversal of 9871012 is 2101789.

9871012 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 665856 + 9205156 = 816^2 + 3034^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108 + ... + 4444.

It is an arithmetic number, because the mean of its divisors is an integer number (1442385).

Almost surely, 2^9871012 is an apocalyptic number.

It is an amenable number.

9871012 is a deficient number, since it is larger than the sum of its proper divisors (7437608).

9871012 is a wasteful number, since it uses less digits than its factorization.

9871012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4910 (or 4908 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 9871012 is about 3141.8166719272. The cubic root of 9871012 is about 214.5131366666.

The spelling of 9871012 in words is "nine million, eight hundred seventy-one thousand, twelve".