8522645 has 4 divisors (see below), whose sum is σ = 10227180. Its totient is φ = 6818112.

The previous prime is 8522641. The next prime is 8522663. The reversal of 8522645 is 5462258.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5462258 = 2 ⋅2731129.

It can be written as a sum of positive squares in 2 ways, for example, as 3319684 + 5202961 = 1822^2 + 2281^2 .

It is a cyclic number.

It is not a de Polignac number, because 8522645 - 2² = 8522641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8522641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852260 + ... + 852269.

It is an arithmetic number, because the mean of its divisors is an integer number (2556795).

Almost surely, 2^8522645 is an apocalyptic number.

It is an amenable number.

8522645 is a deficient number, since it is larger than the sum of its proper divisors (1704535).

8522645 is a wasteful number, since it uses less digits than its factorization.

8522645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704534.

The product of its digits is 19200, while the sum is 32.

The square root of 8522645 is about 2919.3569497408. The cubic root of 8522645 is about 204.2638278810.

The spelling of 8522645 in words is "eight million, five hundred twenty-two thousand, six hundred forty-five".