8491444 has 24 divisors (see below), whose sum is σ = 16271528. Its totient is φ = 3853440.

The previous prime is 8491429. The next prime is 8491451. The reversal of 8491444 is 4441948.

It can be written as a sum of positive squares in 4 ways, for example, as 1468944 + 7022500 = 1212^2 + 2650^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1834 + ... + 4510.

Almost surely, 2^8491444 is an apocalyptic number.

It is an amenable number.

8491444 is a deficient number, since it is larger than the sum of its proper divisors (7780084).

8491444 is a wasteful number, since it uses less digits than its factorization.

8491444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755 (or 2753 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 8491444 is about 2914.0082360899. The cubic root of 8491444 is about 204.0142563406.

The spelling of 8491444 in words is "eight million, four hundred ninety-one thousand, four hundred forty-four".