3681776 has 40 divisors (see below), whose sum is σ = 8285184. Its totient is φ = 1552320.

The previous prime is 3681767. The next prime is 3681781. The reversal of 3681776 is 6771863.

3681776 = T₁₅₃ + T₁₅₄ + ... + T₂₉₄.

3681776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7721 + ... + 8183.

Almost surely, 2^3681776 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 3681776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4142592).

3681776 is an abundant number, since it is smaller than the sum of its proper divisors (4603408).

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

3681776 is a wasteful number, since it uses less digits than its factorization.

3681776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549 (or 543 counting only the distinct ones).

The product of its digits is 42336, while the sum is 38.

The square root of 3681776 is about 1918.7954554876. The cubic root of 3681776 is about 154.4136850605.

The spelling of 3681776 in words is "three million, six hundred eighty-one thousand, seven hundred seventy-six".