8449782 has 48 divisors (see below), whose sum is σ = 19628352. Its totient is φ = 2404480.

The previous prime is 8449769. The next prime is 8449807. The reversal of 8449782 is 2879448.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18853 + ... + 19295.

It is an arithmetic number, because the mean of its divisors is an integer number (408924).

Almost surely, 2^8449782 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8449782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9814176).

8449782 is an abundant number, since it is smaller than the sum of its proper divisors (11178570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8449782 is a wasteful number, since it uses less digits than its factorization.

8449782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493 (or 476 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 8449782 is about 2906.8508733679. The cubic root of 8449782 is about 203.6800540266.

The spelling of 8449782 in words is "eight million, four hundred forty-nine thousand, seven hundred eighty-two".