3311985 has 16 divisors (see below), whose sum is σ = 5578560. Its totient is φ = 1673280.

The previous prime is 3311983. The next prime is 3311999. The reversal of 3311985 is 5891133.

It is a happy number.

It is not a de Polignac number, because 3311985 - 2¹ = 3311983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3311983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5526 + ... + 6095.

It is an arithmetic number, because the mean of its divisors is an integer number (348660).

Almost surely, 2^3311985 is an apocalyptic number.

It is an amenable number.

3311985 is a deficient number, since it is larger than the sum of its proper divisors (2266575).

3311985 is a wasteful number, since it uses less digits than its factorization.

3311985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11648.

The product of its digits is 3240, while the sum is 30.

The square root of 3311985 is about 1819.8859854397. The cubic root of 3311985 is about 149.0605732427.

The spelling of 3311985 in words is "three million, three hundred eleven thousand, nine hundred eighty-five".