8051985 has 12 divisors (see below), whose sum is σ = 13956852. Its totient is φ = 4294368.

The previous prime is 8051969. The next prime is 8052007. The reversal of 8051985 is 5891508.

It can be written as a sum of positive squares in 2 ways, for example, as 6411024 + 1640961 = 2532^2 + 1281^2 .

It is not a de Polignac number, because 8051985 - 2⁴ = 8051969 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 89422 + ... + 89511.

It is an arithmetic number, because the mean of its divisors is an integer number (1163071).

Almost surely, 2^8051985 is an apocalyptic number.

It is an amenable number.

8051985 is a deficient number, since it is larger than the sum of its proper divisors (5904867).

8051985 is a wasteful number, since it uses less digits than its factorization.

8051985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178944 (or 178941 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 8051985 is about 2837.6019805462. The cubic root of 8051985 is about 200.4322733589.

The spelling of 8051985 in words is "eight million, fifty-one thousand, nine hundred eighty-five".