3011985 has 48 divisors (see below), whose sum is σ = 5643456. Its totient is φ = 1539648.

The previous prime is 3011971. The next prime is 3011989. The reversal of 3011985 is 5891103.

It is not a de Polignac number, because 3011985 - 2⁷ = 3011857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3011989) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 44922 + ... + 44988.

It is an arithmetic number, because the mean of its divisors is an integer number (117572).

Almost surely, 2^3011985 is an apocalyptic number.

It is an amenable number.

3011985 is a deficient number, since it is larger than the sum of its proper divisors (2631471).

3011985 is an equidigital number, since it uses as much as digits as its factorization.

3011985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 3011985 is about 1735.5071304953. The cubic root of 3011985 is about 144.4167614053.

The spelling of 3011985 in words is "three million, eleven thousand, nine hundred eighty-five".