8673281 has 8 divisors (see below), whose sum is σ = 9432360. Its totient is φ = 7941888.

The previous prime is 8673271. The next prime is 8673293. The reversal of 8673281 is 1823768.

It can be written as a sum of positive squares in 4 ways, for example, as 6713281 + 1960000 = 2591^2 + 1400^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 8673281 - 2¹⁴ = 8656897 is a prime.

It is a super-2 number, since 2×8673281² = 150451606609922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8673221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6266 + ... + 7523.

It is an arithmetic number, because the mean of its divisors is an integer number (1179045).

Almost surely, 2^8673281 is an apocalyptic number.

It is an amenable number.

8673281 is a deficient number, since it is larger than the sum of its proper divisors (759079).

8673281 is a wasteful number, since it uses less digits than its factorization.

8673281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13843.

The product of its digits is 16128, while the sum is 35.

The square root of 8673281 is about 2945.0434631767. The cubic root of 8673281 is about 205.4602469068.

The spelling of 8673281 in words is "eight million, six hundred seventy-three thousand, two hundred eighty-one".