9856001 has 4 divisors (see below), whose sum is σ = 9974832. Its totient is φ = 9737172.

The previous prime is 9855997. The next prime is 9856019. The reversal of 9856001 is 1006589.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9856001 - 2² = 9855997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9856051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59291 + ... + 59456.

It is an arithmetic number, because the mean of its divisors is an integer number (2493708).

Almost surely, 2^9856001 is an apocalyptic number.

It is an amenable number.

9856001 is a deficient number, since it is larger than the sum of its proper divisors (118831).

9856001 is a wasteful number, since it uses less digits than its factorization.

9856001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118830.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 9856001 is about 3139.4268585205. The cubic root of 9856001 is about 214.4043436898.

The spelling of 9856001 in words is "nine million, eight hundred fifty-six thousand, one".