9870971 has 16 divisors (see below), whose sum is σ = 11235840. Its totient is φ = 8592480.

The previous prime is 9870967. The next prime is 9870977. The reversal of 9870971 is 1790789.

It is a cyclic number.

It is not a de Polignac number, because 9870971 - 2² = 9870967 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9870977) 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, 32000 + ... + 32306.

It is an arithmetic number, because the mean of its divisors is an integer number (702240).

Almost surely, 2^9870971 is an apocalyptic number.

9870971 is a deficient number, since it is larger than the sum of its proper divisors (1364869).

9870971 is a wasteful number, since it uses less digits than its factorization.

9870971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434.

The product of its (nonzero) digits is 31752, while the sum is 41.

The square root of 9870971 is about 3141.8101470331. The cubic root of 9870971 is about 214.5128396673.

The spelling of 9870971 in words is "nine million, eight hundred seventy thousand, nine hundred seventy-one".