8257245 has 16 divisors (see below), whose sum is σ = 13247232. Its totient is φ = 4392000.

The previous prime is 8257243. The next prime is 8257259. The reversal of 8257245 is 5427528.

It is not a de Polignac number, because 8257245 - 2¹ = 8257243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8257243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10620 + ... + 11370.

It is an arithmetic number, because the mean of its divisors is an integer number (827952).

Almost surely, 2^8257245 is an apocalyptic number.

It is an amenable number.

8257245 is a deficient number, since it is larger than the sum of its proper divisors (4989987).

8257245 is a wasteful number, since it uses less digits than its factorization.

8257245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492.

The product of its digits is 22400, while the sum is 33.

The square root of 8257245 is about 2873.5422391188. The cubic root of 8257245 is about 202.1211327835.

The spelling of 8257245 in words is "eight million, two hundred fifty-seven thousand, two hundred forty-five".