3111986 has 8 divisors (see below), whose sum is σ = 4942620. Its totient is φ = 1464448.

The previous prime is 3111973. The next prime is 3112007. The reversal of 3111986 is 6891113.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3010225 + 101761 = 1735^2 + 319^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 45731 + ... + 45798.

Almost surely, 2^3111986 is an apocalyptic number.

3111986 is a deficient number, since it is larger than the sum of its proper divisors (1830634).

3111986 is a wasteful number, since it uses less digits than its factorization.

3111986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91548.

The product of its digits is 1296, while the sum is 29.

The square root of 3111986 is about 1764.0821976314. The cubic root of 3111986 is about 145.9976543065.

The spelling of 3111986 in words is "three million, one hundred eleven thousand, nine hundred eighty-six".