8713565 has 16 divisors (see below), whose sum is σ = 12206592. Its totient is φ = 5846784.

The previous prime is 8713553. The next prime is 8713567. The reversal of 8713565 is 5653178.

It is a cyclic number.

It is not a de Polignac number, because 8713565 - 2¹² = 8709469 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8713567) 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 15 ways as a sum of consecutive naturals, for example, 1004 + ... + 4293.

It is an arithmetic number, because the mean of its divisors is an integer number (762912).

Almost surely, 2^8713565 is an apocalyptic number.

It is an amenable number.

8713565 is a deficient number, since it is larger than the sum of its proper divisors (3493027).

8713565 is a wasteful number, since it uses less digits than its factorization.

8713565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5356.

The product of its digits is 25200, while the sum is 35.

The square root of 8713565 is about 2951.8748279695. The cubic root of 8713565 is about 205.7778498778. Note that the first 3 decimals are identical.

The spelling of 8713565 in words is "eight million, seven hundred thirteen thousand, five hundred sixty-five".