8731849 has 24 divisors (see below), whose sum is σ = 10916640. Its totient is φ = 6943104.

The previous prime is 8731831. The next prime is 8731859. The reversal of 8731849 is 9481378.

It is not a de Polignac number, because 8731849 - 2⁵ = 8731817 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

8731849 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8731819) 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 23 ways as a sum of consecutive naturals, for example, 77217 + ... + 77329.

It is an arithmetic number, because the mean of its divisors is an integer number (454860).

Almost surely, 2^8731849 is an apocalyptic number.

It is an amenable number.

8731849 is a deficient number, since it is larger than the sum of its proper divisors (2184791).

8731849 is a wasteful number, since it uses less digits than its factorization.

8731849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 222 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 8731849 is about 2954.9702198161. The cubic root of 8731849 is about 205.9216797816.

The spelling of 8731849 in words is "eight million, seven hundred thirty-one thousand, eight hundred forty-nine".