8481491 has 4 divisors (see below), whose sum is σ = 8498232. Its totient is φ = 8464752.

The previous prime is 8481481. The next prime is 8481493. The reversal of 8481491 is 1941848.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8481491 - 2²² = 4287187 is a prime.

It is a super-3 number, since 3×8481491³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8481493) 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, 7586 + ... + 8631.

It is an arithmetic number, because the mean of its divisors is an integer number (2124558).

Almost surely, 2^8481491 is an apocalyptic number.

8481491 is a deficient number, since it is larger than the sum of its proper divisors (16741).

8481491 is a wasteful number, since it uses less digits than its factorization.

8481491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16740.

The product of its digits is 9216, while the sum is 35.

The square root of 8481491 is about 2912.2999502112. The cubic root of 8481491 is about 203.9345153777.

The spelling of 8481491 in words is "eight million, four hundred eighty-one thousand, four hundred ninety-one".