8081985 has 8 divisors (see below), whose sum is σ = 12931200. Its totient is φ = 4310384.

The previous prime is 8081971. The next prime is 8082013. The reversal of 8081985 is 5891808.

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

It is a cyclic number.

It is not a de Polignac number, because 8081985 - 2¹⁷ = 7950913 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 269385 + ... + 269414.

It is an arithmetic number, because the mean of its divisors is an integer number (1616400).

Almost surely, 2^8081985 is an apocalyptic number.

It is an amenable number.

8081985 is a deficient number, since it is larger than the sum of its proper divisors (4849215).

8081985 is a wasteful number, since it uses less digits than its factorization.

8081985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538807.

The product of its (nonzero) digits is 23040, while the sum is 39.

The square root of 8081985 is about 2842.8832195502. The cubic root of 8081985 is about 200.6808876627.

The spelling of 8081985 in words is "eight million, eighty-one thousand, nine hundred eighty-five".