8087840 has 24 divisors (see below), whose sum is σ = 19107900. Its totient is φ = 3235072.

The previous prime is 8087819. The next prime is 8087861. The reversal of 8087840 is 487808.

It is an interprime number because it is at equal distance from previous prime (8087819) and next prime (8087861).

It can be written as a sum of positive squares in 2 ways, for example, as 8042896 + 44944 = 2836^2 + 212^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8087840.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 25115 + ... + 25434.

Almost surely, 2^8087840 is an apocalyptic number.

8087840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8087840 is an abundant number, since it is smaller than the sum of its proper divisors (11020060).

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

8087840 is a wasteful number, since it uses less digits than its factorization.

8087840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50564 (or 50556 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 8087840 is about 2843.9127975379. The cubic root of 8087840 is about 200.7293371040.

The spelling of 8087840 in words is "eight million, eighty-seven thousand, eight hundred forty".