8047885 has 16 divisors (see below), whose sum is σ = 10373616. Its totient is φ = 5971968.

The previous prime is 8047883. The next prime is 8047889. The reversal of 8047885 is 5887408.

It can be written as a sum of positive squares in 8 ways, for example, as 1687401 + 6360484 = 1299^2 + 2522^2 .

It is a 7-Lehmer number, since φ(8047885) divides (8047885-1)⁷.

It is a cyclic number.

It is not a de Polignac number, because 8047885 - 2¹ = 8047883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8047883) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5557 + ... + 6853.

It is an arithmetic number, because the mean of its divisors is an integer number (648351).

Almost surely, 2^8047885 is an apocalyptic number.

8047885 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8047885 is a deficient number, since it is larger than the sum of its proper divisors (2325731).

8047885 is a wasteful number, since it uses less digits than its factorization.

8047885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392.

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 8047885 is about 2836.8794475621. The cubic root of 8047885 is about 200.3982481324.

The spelling of 8047885 in words is "eight million, forty-seven thousand, eight hundred eighty-five".