8545247 has 4 divisors (see below), whose sum is σ = 8672856. Its totient is φ = 8417640.

The previous prime is 8545217. The next prime is 8545249. The reversal of 8545247 is 7425458.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8545247 - 2⁶ = 8545183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8545249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63704 + ... + 63837.

It is an arithmetic number, because the mean of its divisors is an integer number (2168214).

Almost surely, 2^8545247 is an apocalyptic number.

8545247 is a deficient number, since it is larger than the sum of its proper divisors (127609).

8545247 is a wasteful number, since it uses less digits than its factorization.

8545247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127608.

The product of its digits is 44800, while the sum is 35.

The square root of 8545247 is about 2923.2254446074. The cubic root of 8545247 is about 204.4442372814. Note that the first 3 decimals are identical.

The spelling of 8545247 in words is "eight million, five hundred forty-five thousand, two hundred forty-seven".