8520493 has 8 divisors (see below), whose sum is σ = 9178400. Its totient is φ = 7883568.

The previous prime is 8520481. The next prime is 8520503. The reversal of 8520493 is 3940258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8520493 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 (8520433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4398 + ... + 6031.

It is an arithmetic number, because the mean of its divisors is an integer number (1147300).

Almost surely, 2^8520493 is an apocalyptic number.

It is an amenable number.

8520493 is a deficient number, since it is larger than the sum of its proper divisors (657907).

8520493 is a wasteful number, since it uses less digits than its factorization.

8520493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10491.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 8520493 is about 2918.9883521522. The cubic root of 8520493 is about 204.2466339715.

The spelling of 8520493 in words is "eight million, five hundred twenty thousand, four hundred ninety-three".