8889281 has 4 divisors (see below), whose sum is σ = 9176064. Its totient is φ = 8602500.

The previous prime is 8889263. The next prime is 8889301. The reversal of 8889281 is 1829888.

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 a de Polignac number, because none of the positive numbers 2^k-8889281 is a prime.

It is a super-2 number, since 2×8889281² = 158038633393922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8889581) 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 3 ways as a sum of consecutive naturals, for example, 143345 + ... + 143406.

It is an arithmetic number, because the mean of its divisors is an integer number (2294016).

Almost surely, 2^8889281 is an apocalyptic number.

It is an amenable number.

8889281 is a deficient number, since it is larger than the sum of its proper divisors (286783).

8889281 is a wasteful number, since it uses less digits than its factorization.

8889281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286782.

The product of its digits is 73728, while the sum is 44.

The square root of 8889281 is about 2981.4897283070. The cubic root of 8889281 is about 207.1518796364.

The spelling of 8889281 in words is "eight million, eight hundred eighty-nine thousand, two hundred eighty-one".