3781736 has 16 divisors (see below), whose sum is σ = 8103840. Its totient is φ = 1620720.

The previous prime is 3781727. The next prime is 3781747. The reversal of 3781736 is 6371873.

3781736 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3781696 and 3781705.

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 3 ways as a sum of consecutive naturals, for example, 33710 + ... + 33821.

It is an arithmetic number, because the mean of its divisors is an integer number (506490).

Almost surely, 2^3781736 is an apocalyptic number.

It is an amenable number.

3781736 is an abundant number, since it is smaller than the sum of its proper divisors (4322104).

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

3781736 is a wasteful number, since it uses less digits than its factorization.

3781736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67544 (or 67540 counting only the distinct ones).

The product of its digits is 21168, while the sum is 35.

The square root of 3781736 is about 1944.6686093008. The cubic root of 3781736 is about 155.7986664158.

The spelling of 3781736 in words is "three million, seven hundred eighty-one thousand, seven hundred thirty-six".