8491486 has 4 divisors (see below), whose sum is σ = 12737232. Its totient is φ = 4245742.

The previous prime is 8491471. The next prime is 8491487. The reversal of 8491486 is 6841948.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8491487) 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 as a sum of consecutive naturals, namely, 2122870 + ... + 2122873.

It is an arithmetic number, because the mean of its divisors is an integer number (3184308).

Almost surely, 2^8491486 is an apocalyptic number.

8491486 is a deficient number, since it is larger than the sum of its proper divisors (4245746).

8491486 is a wasteful number, since it uses less digits than its factorization.

8491486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4245745.

The product of its digits is 55296, while the sum is 40.

The square root of 8491486 is about 2914.0154426495. The cubic root of 8491486 is about 204.0145927021.

The spelling of 8491486 in words is "eight million, four hundred ninety-one thousand, four hundred eighty-six".