8540493 has 8 divisors (see below), whose sum is σ = 12263328. Its totient is φ = 5255664.

The previous prime is 8540479. The next prime is 8540501. The reversal of 8540493 is 3940458.

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

It is not a de Polignac number, because 8540493 - 2⁵ = 8540461 is a prime.

8540493 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8540293) 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, 109455 + ... + 109532.

It is an arithmetic number, because the mean of its divisors is an integer number (1532916).

Almost surely, 2^8540493 is an apocalyptic number.

It is an amenable number.

8540493 is a deficient number, since it is larger than the sum of its proper divisors (3722835).

8540493 is a wasteful number, since it uses less digits than its factorization.

8540493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219003.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 8540493 is about 2922.4121885867. The cubic root of 8540493 is about 204.4063172464.

The spelling of 8540493 in words is "eight million, five hundred forty thousand, four hundred ninety-three".