3661112 has 64 divisors (see below), whose sum is σ = 8709120. Its totient is φ = 1404288.

The previous prime is 3661111. The next prime is 3661123. The reversal of 3661112 is 2111663.

3661112 is nontrivially palindromic in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3661111) 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, 34163 + ... + 34269.

It is an arithmetic number, because the mean of its divisors is an integer number (136080).

Almost surely, 2^3661112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3661112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4354560).

3661112 is an abundant number, since it is smaller than the sum of its proper divisors (5048008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3661112 is a wasteful number, since it uses less digits than its factorization.

3661112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 176 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

The square root of 3661112 is about 1913.4032507551. The cubic root of 3661112 is about 154.1242601974.

Adding to 3661112 its reverse (2111663), we get a palindrome (5772775).

It can be divided in two parts, 3661 and 112, that added together give a palindrome (3773).

The spelling of 3661112 in words is "three million, six hundred sixty-one thousand, one hundred twelve".