8549493 has 4 divisors (see below), whose sum is σ = 11399328. Its totient is φ = 5699660.

The previous prime is 8549417. The next prime is 8549503. The reversal of 8549493 is 3949458.

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.

It is a cyclic number.

It is not a de Polignac number, because 8549493 - 2¹⁰ = 8548469 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8549413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1424913 + ... + 1424918.

It is an arithmetic number, because the mean of its divisors is an integer number (2849832).

Almost surely, 2^8549493 is an apocalyptic number.

It is an amenable number.

8549493 is a deficient number, since it is larger than the sum of its proper divisors (2849835).

8549493 is a wasteful number, since it uses less digits than its factorization.

8549493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849834.

The product of its digits is 155520, while the sum is 42.

The square root of 8549493 is about 2923.9516069867. The cubic root of 8549493 is about 204.4780933925.

The spelling of 8549493 in words is "eight million, five hundred forty-nine thousand, four hundred ninety-three".