9855901 has 16 divisors (see below), whose sum is σ = 11202048. Its totient is φ = 8593200.

The previous prime is 9855887. The next prime is 9855913. The reversal of 9855901 is 1095589.

9855901 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9855901 - 2¹⁹ = 9331613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9855941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31536 + ... + 31846.

It is an arithmetic number, because the mean of its divisors is an integer number (700128).

Almost surely, 2^9855901 is an apocalyptic number.

It is an amenable number.

9855901 is a deficient number, since it is larger than the sum of its proper divisors (1346147).

9855901 is a wasteful number, since it uses less digits than its factorization.

9855901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432.

The product of its (nonzero) digits is 16200, while the sum is 37.

The square root of 9855901 is about 3139.4109320062. The cubic root of 9855901 is about 214.4036185645.

It can be divided in two parts, 985 and 5901, that added together give a palindrome (6886).

The spelling of 9855901 in words is "nine million, eight hundred fifty-five thousand, nine hundred one".