8445249 has 16 divisors (see below), whose sum is σ = 12556800. Its totient is φ = 5609808.

The previous prime is 8445161. The next prime is 8445251. The reversal of 8445249 is 9425448.

It is not a de Polignac number, because 8445249 - 2¹⁶ = 8379713 is a prime.

It is an Ulam number.

8445249 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8445259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12607 + ... + 13259.

It is an arithmetic number, because the mean of its divisors is an integer number (784800).

Almost surely, 2^8445249 is an apocalyptic number.

It is an amenable number.

8445249 is a deficient number, since it is larger than the sum of its proper divisors (4111551).

8445249 is a wasteful number, since it uses less digits than its factorization.

8445249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141 (or 1135 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 8445249 is about 2906.0710590073. The cubic root of 8445249 is about 203.6436252037.

The spelling of 8445249 in words is "eight million, four hundred forty-five thousand, two hundred forty-nine".