8993481 has 16 divisors (see below), whose sum is σ = 13833600. Its totient is φ = 5090688.

The previous prime is 8993471. The next prime is 8993489. The reversal of 8993481 is 1843998.

It is not a de Polignac number, because 8993481 - 2⁵ = 8993449 is a prime.

It is a super-2 number, since 2×8993481² = 161765400994722, which contains 22 as substring.

It is a Curzon number.

8993481 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8993489) 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 15 ways as a sum of consecutive naturals, for example, 325 + ... + 4253.

It is an arithmetic number, because the mean of its divisors is an integer number (864600).

Almost surely, 2^8993481 is an apocalyptic number.

It is an amenable number.

8993481 is a deficient number, since it is larger than the sum of its proper divisors (4840119).

8993481 is a wasteful number, since it uses less digits than its factorization.

8993481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4048.

The product of its digits is 62208, while the sum is 42.

The square root of 8993481 is about 2998.9133031817. The cubic root of 8993481 is about 207.9581477061.

The spelling of 8993481 in words is "eight million, nine hundred ninety-three thousand, four hundred eighty-one".