9856997 has 8 divisors (see below), whose sum is σ = 10081344. Its totient is φ = 9635328.

The previous prime is 9856963. The next prime is 9857009. The reversal of 9856997 is 7996589.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9856997 - 2⁸ = 9856741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9856927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7973 + ... + 9125.

It is an arithmetic number, because the mean of its divisors is an integer number (1260168).

Almost surely, 2^9856997 is an apocalyptic number.

It is an amenable number.

9856997 is a deficient number, since it is larger than the sum of its proper divisors (224347).

9856997 is a wasteful number, since it uses less digits than its factorization.

9856997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339.

The product of its digits is 1224720, while the sum is 53.

The square root of 9856997 is about 3139.5854821935. The cubic root of 9856997 is about 214.4115656701.

The spelling of 9856997 in words is "nine million, eight hundred fifty-six thousand, nine hundred ninety-seven".