8864257 has 4 divisors (see below), whose sum is σ = 8886340. Its totient is φ = 8842176.

The previous prime is 8864249. The next prime is 8864267. The reversal of 8864257 is 7524688.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8503056 + 361201 = 2916^2 + 601^2 .

It is a cyclic number.

It is not a de Polignac number, because 8864257 - 2³ = 8864249 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 (8864267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10428 + ... + 11245.

It is an arithmetic number, because the mean of its divisors is an integer number (2221585).

Almost surely, 2^8864257 is an apocalyptic number.

It is an amenable number.

8864257 is a deficient number, since it is larger than the sum of its proper divisors (22083).

8864257 is a wasteful number, since it uses less digits than its factorization.

8864257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22082.

The product of its digits is 107520, while the sum is 40.

The square root of 8864257 is about 2977.2902109133. The cubic root of 8864257 is about 206.9573142008.

The spelling of 8864257 in words is "eight million, eight hundred sixty-four thousand, two hundred fifty-seven".