3281986 has 16 divisors (see below), whose sum is σ = 5279904. Its totient is φ = 1524544.

The previous prime is 3281981. The next prime is 3281987. The reversal of 3281986 is 6891823.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (3281981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2241 + ... + 3403.

It is an arithmetic number, because the mean of its divisors is an integer number (329994).

Almost surely, 2^3281986 is an apocalyptic number.

3281986 is a deficient number, since it is larger than the sum of its proper divisors (1997918).

3281986 is a wasteful number, since it uses less digits than its factorization.

3281986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265.

The product of its digits is 20736, while the sum is 37.

The square root of 3281986 is about 1811.6252371835. The cubic root of 3281986 is about 148.6091584051.

The spelling of 3281986 in words is "three million, two hundred eighty-one thousand, nine hundred eighty-six".