8857845 has 24 divisors (see below), whose sum is σ = 15731352. Its totient is φ = 4608000.

The previous prime is 8857841. The next prime is 8857853. The reversal of 8857845 is 5487588.

8857845 is digitally balanced in base 2 and base 4, because in such bases 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 54756 + 8803089 = 234^2 + 2967^2 .

It is not a de Polignac number, because 8857845 - 2² = 8857841 is a prime.

It is a super-2 number, since 2×8857845² = 156922836088050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 8857845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8857841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 556 + ... + 4245.

It is an arithmetic number, because the mean of its divisors is an integer number (655473).

Almost surely, 2^8857845 is an apocalyptic number.

It is an amenable number.

8857845 is a deficient number, since it is larger than the sum of its proper divisors (6873507).

8857845 is a wasteful number, since it uses less digits than its factorization.

8857845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4853 (or 4850 counting only the distinct ones).

The product of its digits is 358400, while the sum is 45.

The square root of 8857845 is about 2976.2131980085. The cubic root of 8857845 is about 206.9074009972.

The spelling of 8857845 in words is "eight million, eight hundred fifty-seven thousand, eight hundred forty-five".