9855445 has 8 divisors (see below), whose sum is σ = 11843640. Its totient is φ = 7872960.

The previous prime is 9855437. The next prime is 9855451. The reversal of 9855445 is 5445589.

9855445 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 4 ways, for example, as 3006756 + 6848689 = 1734^2 + 2617^2 .

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

It is not a de Polignac number, because 9855445 - 2³ = 9855437 is a prime.

It is a super-2 number, since 2×9855445² = 194259592296050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9855398 and 9855407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5071 + ... + 6739.

It is an arithmetic number, because the mean of its divisors is an integer number (1480455).

Almost surely, 2^9855445 is an apocalyptic number.

It is an amenable number.

9855445 is a deficient number, since it is larger than the sum of its proper divisors (1988195).

9855445 is a wasteful number, since it uses less digits than its factorization.

9855445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2855.

The product of its digits is 144000, while the sum is 40.

The square root of 9855445 is about 3139.3383060766. The cubic root of 9855445 is about 214.4003119310.

The spelling of 9855445 in words is "nine million, eight hundred fifty-five thousand, four hundred forty-five".