8909493 has 8 divisors (see below), whose sum is σ = 12262656. Its totient is φ = 5748000.

The previous prime is 8909491. The next prime is 8909497. The reversal of 8909493 is 3949098.

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

It is not a de Polignac number, because 8909493 - 2¹ = 8909491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8909491) 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, 47808 + ... + 47993.

It is an arithmetic number, because the mean of its divisors is an integer number (1532832).

Almost surely, 2^8909493 is an apocalyptic number.

It is an amenable number.

8909493 is a deficient number, since it is larger than the sum of its proper divisors (3353163).

8909493 is a wasteful number, since it uses less digits than its factorization.

8909493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95835.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 8909493 is about 2984.8773844163. The cubic root of 8909493 is about 207.3087646321.

The spelling of 8909493 in words is "eight million, nine hundred nine thousand, four hundred ninety-three".