8857281 has 4 divisors (see below), whose sum is σ = 11809712. Its totient is φ = 5904852.

The previous prime is 8857273. The next prime is 8857283. The reversal of 8857281 is 1827588.

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 not a de Polignac number, because 8857281 - 2³ = 8857273 is a prime.

It is a super-2 number, since 2×8857281² = 156902853425922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8857283) 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, 1476211 + ... + 1476216.

It is an arithmetic number, because the mean of its divisors is an integer number (2952428).

Almost surely, 2^8857281 is an apocalyptic number.

It is an amenable number.

8857281 is a deficient number, since it is larger than the sum of its proper divisors (2952431).

8857281 is a wasteful number, since it uses less digits than its factorization.

8857281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2952430.

The product of its digits is 35840, while the sum is 39.

The square root of 8857281 is about 2976.1184452236. The cubic root of 8857281 is about 206.9030094756.

The spelling of 8857281 in words is "eight million, eight hundred fifty-seven thousand, two hundred eighty-one".