9855457 has 8 divisors (see below), whose sum is σ = 10144512. Its totient is φ = 9568800.

The previous prime is 9855451. The next prime is 9855463. The reversal of 9855457 is 7545589.

9855457 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9855451) and next prime (9855463).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9855457 is a prime.

It is a d-powerful number, because it can be written as 9⁷ + 8 + 5 + 5⁹ + 4¹⁰ + 5⁹ + 7⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9855451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10668 + ... + 11554.

It is an arithmetic number, because the mean of its divisors is an integer number (1268064).

Almost surely, 2^9855457 is an apocalyptic number.

It is an amenable number.

9855457 is a deficient number, since it is larger than the sum of its proper divisors (289055).

9855457 is a wasteful number, since it uses less digits than its factorization.

9855457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199.

The product of its digits is 252000, while the sum is 43.

The square root of 9855457 is about 3139.3402173068. The cubic root of 9855457 is about 214.4003989490.

It can be divided in two parts, 98 and 55457, that added together give a palindrome (55555).

The spelling of 9855457 in words is "nine million, eight hundred fifty-five thousand, four hundred fifty-seven".