8671849 has 4 divisors (see below), whose sum is σ = 8680660. Its totient is φ = 8663040.

The previous prime is 8671837. The next prime is 8671907. The reversal of 8671849 is 9481768.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3125824 + 5546025 = 1768^2 + 2355^2 .

It is a cyclic number.

It is not a de Polignac number, because 8671849 - 2⁷ = 8671721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8671249) 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, 2712 + ... + 4969.

It is an arithmetic number, because the mean of its divisors is an integer number (2170165).

Almost surely, 2^8671849 is an apocalyptic number.

It is an amenable number.

8671849 is a deficient number, since it is larger than the sum of its proper divisors (8811).

8671849 is a wasteful number, since it uses less digits than its factorization.

8671849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8810.

The product of its digits is 96768, while the sum is 43.

The square root of 8671849 is about 2944.8003327900. The cubic root of 8671849 is about 205.4489387960.

The spelling of 8671849 in words is "eight million, six hundred seventy-one thousand, eight hundred forty-nine".