8518573 has 4 divisors (see below), whose sum is σ = 9735520. Its totient is φ = 7301628.

The previous prime is 8518567. The next prime is 8518577. The reversal of 8518573 is 3758158.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3758158 = 2 ⋅1879079.

It is a cyclic number.

It is not a de Polignac number, because 8518573 - 2⁵ = 8518541 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 (8518577) 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, 608463 + ... + 608476.

It is an arithmetic number, because the mean of its divisors is an integer number (2433880).

Almost surely, 2^8518573 is an apocalyptic number.

It is an amenable number.

8518573 is a deficient number, since it is larger than the sum of its proper divisors (1216947).

8518573 is a wasteful number, since it uses less digits than its factorization.

8518573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216946.

The product of its digits is 33600, while the sum is 37.

The square root of 8518573 is about 2918.6594525569. The cubic root of 8518573 is about 204.2312912365.

It can be divided in two parts, 85185 and 73, that added together give a palindrome (85258).

The spelling of 8518573 in words is "eight million, five hundred eighteen thousand, five hundred seventy-three".