8003986 has 8 divisors (see below), whose sum is σ = 12018060. Its totient is φ = 3997968.

The previous prime is 8003981. The next prime is 8003987. The reversal of 8003986 is 6893008.

It can be written as a sum of positive squares in 2 ways, for example, as 6599761 + 1404225 = 2569^2 + 1185^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (8003981) 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, 2460 + ... + 4696.

Almost surely, 2^8003986 is an apocalyptic number.

8003986 is a deficient number, since it is larger than the sum of its proper divisors (4014074).

8003986 is a wasteful number, since it uses less digits than its factorization.

8003986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4028.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 8003986 is about 2829.1316689048. The cubic root of 8003986 is about 200.0332111515.

The spelling of 8003986 in words is "eight million, three thousand, nine hundred eighty-six".