8117449 has 4 divisors (see below), whose sum is σ = 8594964. Its totient is φ = 7639936.

The previous prime is 8117437. The next prime is 8117479. The reversal of 8117449 is 9447118.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7617600 + 499849 = 2760^2 + 707^2 .

It is not a de Polignac number, because 8117449 - 2²¹ = 6020297 is a prime.

It is a Duffinian number.

8117449 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8117429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238732 + ... + 238765.

It is an arithmetic number, because the mean of its divisors is an integer number (2148741).

Almost surely, 2^8117449 is an apocalyptic number.

It is an amenable number.

8117449 is a deficient number, since it is larger than the sum of its proper divisors (477515).

8117449 is a wasteful number, since it uses less digits than its factorization.

8117449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477514.

The product of its digits is 8064, while the sum is 34.

The square root of 8117449 is about 2849.1137218440. The cubic root of 8117449 is about 200.9739906776.

The spelling of 8117449 in words is "eight million, one hundred seventeen thousand, four hundred forty-nine".